|
 brave 1.32 |
 chrome 96.0 |
 duckduckgo 5.105 |
 edge 96.0 |
 firefox 95.1 |
 opera 65.2 |
 samsung 16.0 |
 tor 10.5 |
 vivaldi 5.0 |
 yandex 21.11 |
|---|---|---|---|---|---|---|---|---|---|---|
| State Partitioning testsA common vulnerability of web browsers is that they allow tracking companies to 'tag' your browser with some data ('state') that identifies you. When third-party trackers are embedded in websites, they can see this identifying data as you browse to different websites. Fortunately, it is possible for this category of leaks to be fixed by partitioning all data stored in the browser such that no data can be shared between websites. | ||||||||||
Alt-SvcAlt-Svc allows the server to indicate to the web browser that a resource should be loaded on a different server. Because this is a persistent setting, it could be used to track users across websites if it is not correctly partitioned. |
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h3
result, different first party: h2
unsupported: false
passed: true
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h3
result, different first party: h3
unsupported: false
passed: false
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h3
result, different first party: h3
unsupported: false
passed: false
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h3
result, different first party: h3
unsupported: false
passed: false
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h3
result, different first party: h2
unsupported: false
passed: true
test failed: false
| –
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h2
result, different first party: h2
unsupported: true
passed: undefined
test failed: false
| –
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h2
result, different first party: h2
unsupported: true
passed: undefined
test failed: false
| –
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h2
result, different first party: h2
unsupported: true
passed: undefined
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h3
result, different first party: h3
unsupported: false
passed: false
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
console.log("clear", responseText, i);
await sleepMs(10);
}
if (responseText !== "h2") {
// Clearing failed.
throw new Error("Unsupported");
}
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 10 && responseText !== "h3"; ++i) {
responseText = await fetchText("https://h3.arthuredelstein.net:4433/protocol");
console.log("protocol", responseText, i);
await sleepMs(10);
}
if (responseText !== "h3") {
// Storage failed.
throw new Error("Unsupported");
}
}
read: () => fetchText("https://h3.arthuredelstein.net:4433/protocol")
result, same first party: h3
result, different first party: h3
unsupported: false
passed: false
test failed: false
|
blobA 'blob URL' is a local reference to some raw data. Trackers can use a blob URL to share data between websites. |
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: d1614472-fb7c-4e32-9224-cf995aa5452c
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party: Error: NetworkError when attempting to fetch resource.
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}/blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}/blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
BroadcastChannelA BroadcastChannel is designed to send messages between tabs. In some browsers it can be used for cross-site communication and tracking. |
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: Error: no BroadcastChannel message
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party: Error: The operation is insecure.
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
CacheStorageThe Cache API is a content storage mechanism originally introduced to support ServiceWorkers. If the same Cache object is accessible to multiple websites, it can be abused to track users. |
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: db4a4976-3f4b-4464-b035-3cb96987017f
result, different first party: Error: An attempt was made to break through the security policy of the user agent.
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: fb760fe6-3247-43d9-a7e5-dae8b1914e2b
result, different first party: fb760fe6-3247-43d9-a7e5-dae8b1914e2b
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: 8431696f-e29e-42c3-8dde-cdd4f3269edc
result, different first party: 8431696f-e29e-42c3-8dde-cdd4f3269edc
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: 73ff56ac-8f2c-4879-861c-16d226e63916
result, different first party: 73ff56ac-8f2c-4879-861c-16d226e63916
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: b6904e73-8123-470b-af93-9efc26449e01
result, different first party: b6904e73-8123-470b-af93-9efc26449e01
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: 6cb5d9ac-b62f-41d9-a41e-5ee36aeaee14
result, different first party: 6cb5d9ac-b62f-41d9-a41e-5ee36aeaee14
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: ec45e5be-a09a-4677-9e6e-714e2a54cbc8
result, different first party: ec45e5be-a09a-4677-9e6e-714e2a54cbc8
unsupported: false
passed: false
test failed: false
| –
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: Error: The operation is insecure.
result, different first party: Error: The operation is insecure.
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: 50cf7e85-4ac9-44a2-be56-3cd7acd17d5e
result, different first party: 50cf7e85-4ac9-44a2-be56-3cd7acd17d5e
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: eb7f7982-e3be-4457-a7eb-f90fd25bbaf4
result, different first party: eb7f7982-e3be-4457-a7eb-f90fd25bbaf4
unsupported: false
passed: false
test failed: false
|
cookieThe cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
CSS cacheCSS stylesheets are cached, and if that cache is shared between websites, it can be used to track users across sites. |
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_09724177417472624
result, different first party: fake_860372949652304
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_15828075320710444
result, different first party: fake_15828075320710444
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_13144179838668957
result, different first party: fake_13144179838668957
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_4348616660915523
result, different first party: fake_4348616660915523
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_6046545530458272
result, different first party: fake_5550550418434006
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_12506023817044976
result, different first party: fake_12506023817044976
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_17885504461062451
result, different first party: fake_17885504461062451
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_6523325100697175
result, different first party: fake_5081101812963764
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_6222584233300572
result, different first party: fake_6222584233300572
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += ``;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_9295764039494088
result, different first party: fake_3703646144999042
unsupported: false
passed: true
test failed: false
|
favicon cacheA favicon is an icon that represents a website, typically shown in browser tab and bookmarks menu. If the favicon cache is not partitioned, it can be used to track users across websites. |
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
| –
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(500);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
fetch cacheWhen a resource is received via the Fetch API, it is frequently cached. That cache can potentially be abused for cross-site tracking. |
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
font cacheWeb fonts are sometimes stored in their own cache, which is vulnerable to being abused for cross-site tracking. |
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
H1 connectionHTTP/1.x are the classic web connection protocols. If these connections are re-used across websites, they can be used to track users. |
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
H2 connectionHTTP/2 is a web connection protocol introduced in 2015. Some browsers re-use HTTP/2 connections across websites and can thus be used to track users. |
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
H3 connectionHTTP/3 is a new standard HTTP connection protocol, still in draft but widely supported by browsers. If it is not partitioned, it can be used to track users across websites. |
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party: c802c36ff2232bf04d200ed047a6adbe
result, different first party: 89745a05b652fe0437fc81132181c9d9
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party: 97d6979759d4b9250f9292e2cfe6bb87
result, different first party: 97d6979759d4b9250f9292e2cfe6bb87
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party: 32d4a5e3a7a555deac2905c8bd81e0ab
result, different first party: 32d4a5e3a7a555deac2905c8bd81e0ab
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party: c4807a9a1b66ffe0a1553cff967d5092
result, different first party: c4807a9a1b66ffe0a1553cff967d5092
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party: b1feed300f66856c0dc7ce70682fbc43
result, different first party: e509879ff826430934ae35dea7294ca2
unsupported: false
passed: true
test failed: false
| –
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party:
result, different first party:
unsupported: true
passed: undefined
test failed: false
| –
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party:
result, different first party:
unsupported: true
passed: undefined
test failed: false
| –
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party:
result, different first party:
unsupported: true
passed: undefined
test failed: false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party: 98f33d8c02aa415ffb22b755b07a18d1
result, different first party: 98f33d8c02aa415ffb22b755b07a18d1
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.arthuredelstein.net:4433/connection_id`);
return await response.text();
}
result, same first party: ae4f882c1b2c9deb8b30ea616588cbad
result, different first party: ae4f882c1b2c9deb8b30ea616588cbad
unsupported: false
passed: false
test failed: false
|
HSTS cacheThe HTTP Strict-Transport-Security response header allows a website to signal that it should only be accessed via HTTPS. The browser remembers this directive in a database, but if this database is not partitioned, then it can be used to track users across websites. |
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: image load succeeded
unsupported: false
passed: false
test failed: false
|
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: image load succeeded
unsupported: false
passed: false
test failed: false
|
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: image load succeeded
unsupported: false
passed: false
test failed: false
|
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: image load succeeded
unsupported: false
passed: false
test failed: false
|
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: Error: image load failed
unsupported: false
passed: true
test failed: false
|
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: image load succeeded
unsupported: false
passed: false
test failed: false
|
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: image load succeeded
unsupported: false
passed: false
test failed: false
| –
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: Error: image load failed
result, different first party: Error: image load failed
unsupported: true
passed: undefined
test failed: false
|
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: image load succeeded
unsupported: false
passed: false
test failed: false
|
write: () => {
let image = document.getElementById("hsts-image");
image.src = "https://hsts.arthuredelstein.net/set_hsts.png";
}
read: () => new Promise((resolve, reject) => {
let image = document.getElementById("hsts-image");
image.onload = () => resolve("image load succeeded");
image.onerror = () => reject(new Error("image load failed"));
image.src = "http://hsts.arthuredelstein.net/test_hsts.png";
})
result, same first party: image load succeeded
result, different first party: image load succeeded
unsupported: false
passed: false
test failed: false
|
iframe cacheAn iframe is an element in a web page than allows websites to embed a second web page. Caching of this web page could be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
image cacheCaching of images in web browsers is a standard behavior. But if that cache leaks between websites, it can be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
indexedDBThe IndexedDB API exposes a transactional database to web pages. That database can be used to track users across websites, unless it is partitioned. |
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: Error: The user denied permission to access the database.
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
| –
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: Error: A mutation operation was attempted on a database that did not allow mutations.
result, different first party: Error: The operation is insecure.
unsupported: true
passed: undefined
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
localStorageThe localStorage API gives websites access to a key-value database that will remain available across visits. If the localStorage API is not partitioned or blocked, it can also be used to track users across websites. |
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party: Error: The operation is insecure.
unsupported: false
passed: true
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
locksnavigator.locks (only supported in some browsers) allows scripts on multiple tabs to coordinate. If this API is not partitioned, it can be used for cross-site tracking. |
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: Error: Failed to execute 'query' on 'LockManager': Access to the Locks API is denied in this context.
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
| –
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: undefined
result, different first party: undefined
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
| –
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: undefined
result, different first party: undefined
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
prefetch cacheA suggests to browsers they should fetch a resource ahead of time and cache it. But if browsers don't partition this cache, it can be used to track users across websites. |
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
ServiceWorkerThe ServiceWorker API allows websites to run code in the background and store content in the browser for offline use. If a ServiceWorker can be accessed from multiple websites, it can be abused to track users across sites. |
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: Error: Failed to register a ServiceWorker for scope ('https://arthuredelstein.net/test-pages/') with script ('https://arthuredelstein.net/test-pages/serviceWorker.js'): The user denied permission to use Service Worker.
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
| –
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: Error: navigator.serviceWorker is undefined
result, different first party: Error: navigator.serviceWorker is undefined
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
SharedWorkerThe SharedWorker API allows scripts from multiple tabs to share a background thread of computation. If SharedWorker is not partitioned, then it can be abused to shared data between websites in your browser. | –
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: Error: SharedWorker is not defined
result, different first party: Error: SharedWorker is not defined
unsupported: true
passed: undefined
test failed: false
| –
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: Error: SharedWorker is not defined
result, different first party: Error: SharedWorker is not defined
unsupported: true
passed: undefined
test failed: false
| –
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: Error: SharedWorker is not defined
result, different first party: Error: SharedWorker is not defined
unsupported: true
passed: undefined
test failed: false
| –
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: Error: SharedWorker is not defined
result, different first party: Error: SharedWorker is not defined
unsupported: true
passed: undefined
test failed: false
|
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
unsupported: false
passed: false
test failed: false
| –
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: Error: SharedWorker is not defined
result, different first party: Error: SharedWorker is not defined
unsupported: true
passed: undefined
test failed: false
| –
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: Error: SharedWorker is not defined
result, different first party: Error: SharedWorker is not defined
unsupported: true
passed: undefined
test failed: false
|
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party: Error: The operation is insecure.
unsupported: false
passed: true
test failed: false
| –
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: Error: SharedWorker is not defined
result, different first party: Error: SharedWorker is not defined
unsupported: true
passed: undefined
test failed: false
| –
write: (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage(secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
worker.port.postMessage("request");
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject("no SharedWorker message received"), 100);
})
result, same first party: Error: SharedWorker is not defined
result, different first party: Error: SharedWorker is not defined
unsupported: true
passed: undefined
test failed: false
|
TLS Session IDThe TLS protocol is used by HTTPS to make connections secure. If the browser were to re-use a TLS session, then the session ID could be used to track users across websites. |
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: 8983a299fc3d8c3636f45db6e6bfb5632c22c56abf75cb7cd2782bf9343a263c
result, different first party: 0430b5a8495010b84038d84de150eeb4a0dbce9793d90026cac3b10229c7d451
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: 6025d4a24f1ccb63d862c685a1fe0b4d6fbe8108da4c27ac1b2c945c86df2fbd
result, different first party: cd8dc97304b8b5747c3c6f2a9162e6a003377905b68983554f5af859ee93f8ba
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: bb3ec29dc440b4193d17ebc174da50f93c45f08381404550db243a165d9f5576
result, different first party: 659c67f8a7dd8f548f8edd2a117a7244061f8705d6030932620833f177da25e9
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: 503b89f2ae43c3eaddf0faa7b45c6a1b3a2f8743286f77ad383477c589faa42c
result, different first party: 469883f5567e5fce31d0b83c55ac8a55016cba242e0f333b05ed33c4edd39273
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: 09b3b9c44a3daaea40b38dfd26a09e92e8de9822e1e8e0e69cb2ba47e01bb085
result, different first party: 043003473f504667d57a14183f7bf14bd7474aca33ee31942e7266c0a81ece32
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: 132b51dc2fdade9d6cfd3f988d8f1779ef099228ee97757af1582e85f11e76dc
result, different first party: 9e7d45c427d25332293928959e548085e63ae259bf6e5873dc7c41fd373625b8
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: 97dc3b2c099c1041c800697f3fefa80d3755fe614767613149fa282e649c65e3
result, different first party: db3c001b2604d6eea74e987842097e8a3789b2e44e2f04085ecef997807bd7e6
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: d3462c501ff84287299b79b573ef1438c03d02f35685594195ee56167e5635b3
result, different first party: 85b1271a22521b138527e8a5bb348b62d6f476288143683a1a5bfb16fcfc599f
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: 61edbd8c4c22c15a44f64307f3ffbfa6f85b5f050dab126d77f3cbb965490831
result, different first party: a718cf822ef43b183c2b1cc07594fa496f8f64222e06133aacc0194c8468b1d5
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.arthuredelstein.net:8900/");
return (await results.json()).sessionId;
}
result, same first party: 46e706b087d044f72980a2efd21d92da25ca8fe501588a2be6b349bc3f887465
result, different first party: 53b35cd655da9613edc77ba7c8e14e6a0c0e147be35e55e31a2f939e05790b17
unsupported: false
passed: true
test failed: false
|
Web SQL DatabaseThe Web SQL Database is a deprecated web API for storing data in an SQL database. |
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: Error: Failed to execute 'openDatabase' on 'Window': Access to the WebDatabase API is denied in third party contexts.
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
| –
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: Error: window.openDatabase is not a function
result, different first party: Error: window.openDatabase is not a function
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
| –
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: Error: window.openDatabase is not a function
result, different first party: Error: window.openDatabase is not a function
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
| –
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: Error: window.openDatabase is not a function
result, different first party: Error: window.openDatabase is not a function
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("Unsupported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
XMLHttpRequest cacheSimilar to the newer Fetch API, any resource received may be cached by the browser. The cache is potentially vulnerable to cross-site tracking attack. |
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 00:52:55 GMT
result, different first party: Tue, 14 Dec 2021 18:50:02 GMT
unsupported: false
passed: true
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 00:50:51 GMT
result, different first party: Mon, 13 Dec 2021 19:12:31 GMT
unsupported: false
passed: true
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 00:48:50 GMT
result, different first party: Thu, 16 Dec 2021 00:48:50 GMT
unsupported: false
passed: false
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 02:10:43 GMT
result, different first party: Tue, 14 Dec 2021 18:45:20 GMT
unsupported: false
passed: true
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 00:49:52 GMT
result, different first party: Tue, 14 Dec 2021 18:46:45 GMT
unsupported: false
passed: true
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 02:08:13 GMT
result, different first party: Thu, 16 Dec 2021 02:08:13 GMT
unsupported: false
passed: false
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 00:53:48 GMT
result, different first party: Thu, 16 Dec 2021 00:53:48 GMT
unsupported: false
passed: false
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 00:45:53 GMT
result, different first party: Thu, 16 Dec 2021 00:46:41 GMT
unsupported: false
passed: true
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 00:51:54 GMT
result, different first party: Tue, 14 Dec 2021 18:48:56 GMT
unsupported: false
passed: true
test failed: false
|
write: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
{"secret": xhr.getResponseHeader("date")}));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
read: () => new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => resolve(
xhr.getResponseHeader("date")));
xhr.open("GET", "https://arthuredelstein.net");
xhr.setRequestHeader("Cache-Control", "max-age");
xhr.send();
setTimeout(() => reject({message: "XHR: no response"}), 3000);
})
result, same first party: Thu, 16 Dec 2021 02:14:57 GMT
result, different first party: Tue, 14 Dec 2021 18:55:42 GMT
unsupported: false
passed: true
test failed: false
|
| Navigation testsWhen you click a hyperlink to navigate your browser from one site to another, certain browser APIs allow the first site to communicate to the second site. These privacy vulnerabilities can be fixed by introducing new limits on how much data is transfered between sites. | ||||||||||
document.referrerThe Referer [sic] request header is a mechanism used by browsers to let a website know where the user is visiting from. This header is inherently tracking users across websites. In recent times, browsers have switched to a policy of trimming a referrer to convey less tracking information, but Referer continues to convey cross-site tracking data by default. |
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => new Promise((resolve) => {
parent.postMessage({"read document.referrer": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: https://arthuredelstein.net/
result, different first party: https://arthuredelstein.net/
unsupported: false
passed: false
test failed: false
|
sessionStorageThe sessionStorage API is similar to the localStorage API, but it does not persist across tabs or across browser sessions. Nonetheless, it can be used to track users if they navigate from one website to another. This tracking can be thwarted by partitioning sessionStorage between websites. |
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
window.nameThe window.name API allows websites to store data that will persist after the user has navigated the tab to a different website. This mechanism could be partitioned so that data is not allowed to persist between websites. |
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: d1614472-fb7c-4e32-9224-cf995aa5452c
result, different first party: d1614472-fb7c-4e32-9224-cf995aa5452c
unsupported: false
passed: false
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
result, different first party: 40e61c0f-bf68-49f7-8b2e-5970ea9b8bb4
unsupported: false
passed: false
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
result, different first party: 89a299a3-3883-4fd7-a7ef-6aed0cdfe685
unsupported: false
passed: false
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
result, different first party: 8a503c6a-b9b9-4a9b-aef4-dc41d7b7cccd
unsupported: false
passed: false
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: a54b9c42-f8d9-41fd-ae7e-d3a92a78d016
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
result, different first party: 7f840a8d-dc47-42aa-ad84-2569e842c297
unsupported: false
passed: false
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
result, different first party: 36cc1451-bc41-4aa3-964e-c1684f3d1ae4
unsupported: false
passed: false
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: c2a05270-bd67-4f79-8362-002448f75844
result, different first party: c2a05270-bd67-4f79-8362-002448f75844
unsupported: false
passed: false
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
result, different first party: dc05eadd-8cc2-4a5b-8822-7f18889724cf
unsupported: false
passed: false
test failed: false
|
write: (secret) => parent.postMessage({"write window.name": secret})
read: () => new Promise((resolve) => {
parent.postMessage({"read window.name": true}, "*");
addEventListener("message", ({data}) => {
resolve(data);
}, { once: true });
})
result, same first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
result, different first party: e9244f07-c520-415c-9a6f-06b4bdb86f72
unsupported: false
passed: false
test failed: false
|
| HTTPS testsHTTPS is the protocol that web browsers use to connect securely to websites. When HTTPS is being used, the connection is encrypted so that third parties on the network cannot read content being sent between the server and your browser. In the past, insecure connections were the default and websites would need to actively request that a browser use HTTPS. Now the status quo is shifting, and browser makers are moving toward a world where HTTPS is the default protocol. | ||||||||||
Insecure websiteChecks to see if the browser stops loading an insecure website and warns the user before giving them the option to continue. Known as HTTPS-Only Mode in some browsers. |
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
passed: false
result: Insecure website loaded
|
Upgradable addressChecks to see if an insecure address entered into the browser's address bar is upgraded to HTTPS whenever possible. |
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: true
passed: true
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
Upgradable hyperlinkChecks to see if the user has clicked on a hyperlink to an insecure address, if the browser upgrades that address to HTTPS whenever possible. |
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
upgraded: true
passed: true
|
upgraded: false
passed: false
|
upgraded: false
passed: false
|
Upgradable imageChecks to see if the browser attempts to upgrade an insecure address for an image to HTTPS whenever possible. |
passed: true
result: upgraded
|
passed: true
result: upgraded
|
passed: false
result: loaded insecurely
|
passed: true
result: upgraded
|
passed: false
result: loaded insecurely
|
passed: true
result: upgraded
|
passed: true
result: upgraded
|
passed: false
result: loaded insecurely
|
passed: true
result: upgraded
|
passed: true
result: upgraded
|
Upgradable scriptChecks to see if the browser attempts to upgrade an insecure address for an script to HTTPS whenever possible. |
passed: true
result: blocked
|
passed: true
result: blocked
|
passed: true
result: blocked
|
passed: true
result: blocked
|
passed: true
result: blocked
|
passed: true
result: blocked
|
passed: true
result: blocked
|
passed: true
result: blocked
|
passed: true
result: blocked
|
passed: true
result: blocked
|
| Misc testsThis category includes tests for the presence of miscellaneous privacy features. | ||||||||||
GPC enabledThe Global Privacy Control is an HTTP header that can be sent by a browser to instruct a website not to sell the user's personal data to third parties. This test checks to see if the GPC header is sent by default. |
sec-gpc: 1
passed: true
|
passed: false
|
Investigating bug for this data point
|
passed: false
|
passed: false
|
passed: false
|
passed: false
|
passed: false
|
passed: false
|
passed: false
|
IP address leakIP addresses can be used to uniquely identify a large percentage of users. A proxy, VPN, or Tor can mask a user's IP address. |
passed: false
|
passed: false
|
passed: false
|
passed: false
|
Investigating likely bug for this data point
|
passed: false
|
passed: false
|
passed: true
|
passed: false
|
passed: false
|
Stream isolationBrowsers that use Tor can use a different Tor circuit per top-level website. | –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
| –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
| –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
| –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
| –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
| –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
| –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: false
readSameFirstParty: 2a0b:f4c2:1::1
readDifferentFirstParty: 2a0b:f4c0:16c:14::1
passed: true
testFailed: false
| –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
| –
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
|
Tor enabledThe Tor network sends the browser's web requests through a series of relays to hide a user's IP address, thereby helping to mask their identity and location. This test checks to see if the Tor network is being used by default. |
IsTorExit: false
passed: false
|
IsTorExit: false
passed: false
|
IsTorExit: false
passed: false
|
IsTorExit: false
passed: false
|
IsTorExit: false
passed: false
|
IsTorExit: false
passed: false
|
IsTorExit: false
passed: false
|
IsTorExit: true
passed: true
|
IsTorExit: false
passed: false
|
IsTorExit: false
passed: false
|
| Fingerprinting resistance testsFingerprinting is a technique trackers use to uniquely identify you as you browse the web. A fingerprinting script will measure several characteristics of your browser and, combining this data, will build a fingerprint that may uniquely identify you among web users. Browsers can introduce countermeasures, such as minimizing the distinguishing information disclosed by certain web APIs so your browser is harder to pick out from the crowd (so-called 'fingerprinting resistance'). | ||||||||||
Media query screen heightHeight of the user's screen in pixels. |
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1263
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1394
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1677
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1394
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1524
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1394
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1416
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: undefined
desired value: 1524
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1285
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 640
desired value: 1416
passed: false
|
Media query screen widthWidth of the user's screen in pixels. |
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 980
desired value: 980
passed: true
|
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
outerHeightHeight of the browser window in pixels, including browser chrome. |
expression: outerHeight
desired expression: innerHeight
actual value: 464
desired value: 1263
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 512
desired value: 1394
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 616
desired value: 1677
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 512
desired value: 1394
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 616
desired value: 1524
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 512
desired value: 1394
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 520
desired value: 1416
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 1524
desired value: 1524
passed: true
|
expression: outerHeight
desired expression: innerHeight
actual value: 472
desired value: 1285
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 520
desired value: 1416
passed: false
|
screen.heightHeight of the user's screen, in pixels. |
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1263
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1394
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1677
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1394
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1524
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1394
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1416
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 1524
desired value: 1524
passed: true
|
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1285
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 640
desired value: 1416
passed: false
|
screen.widthWidth of the user's screen, in pixels. |
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 980
desired value: 980
passed: true
|
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 360
desired value: 980
passed: false
|
screenXPosition, in pixels, of the left edge of the browser window on screen. |
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenX
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
screenYPosition, in pixels, of the top edge of the browser window on screen. |
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenY
desired expression: 0
actual value: 24
desired value: 0
passed: false
|
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
expression: screenY
desired expression: 0
actual value: 0
desired value: 0
passed: true
|
| Tracking query parameter testsWhen you browse from one web page to another, tracking companies will frequently attach a 'tracking query parameter' to the address of the second web page. That query parameter may contain a unique identifier that tracks you individually as you browse the web. And these query parameters are frequently synchronized with cookies, making them a powerful tracking vector. Web browsers can protect you from known tracking query parameters by stripping them from web addresses before your browser sends them. (The set of tracking query parameters tested here was largely borrowed from Brave.) | ||||||||||
__hsfpHubSpot tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
__hsscHubSpot tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
__hstcHubSpot tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
__sDrip.com email address tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
_hsencHubSpot tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
_openstatYandex tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
dclidDoubleClick Click ID (Google) |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
fbclidFacebook Click Identifier |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
gclidGoogle Click Identifier |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
hsCtaTrackingHubSpot tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
igshidInstagram tracking parameter |
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
mc_eidMailchimp Email ID (email recipient's address) |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
mkt_tokAdobe Marketo tracking parameter |
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
ml_subscriberMailerLite email tracking |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
ml_subscriber_hashMailerLite email tracking |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
msclkidMicrosoft Click ID |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
oly_anon_idOmeda marketing 'anonymous' customer id |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
oly_enc_idOmeda marketing 'known' customer id |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
rb_clickidUnknown high-entropy tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
s_cidAdobe Site Catalyst tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
vero_convVero tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
vero_idVero tracking parameter |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
wickedidWicked Reports e-commerce tracking |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
yclidYandex Click ID |
passed: true
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
value: 38591357834007045
passed: false
|
| Tracker content blockingWhen you visit a web page, it frequently has third-party embedded tracking content, such as scripts and tracking pixels. These embedded components spy on you. Some browsers and browser extensions maintain list of tracking companies and block their content from being loaded. This section checks to see if a browser blocks 20 of the largest trackers, as reported by https://whotracks.me. | ||||||||||
AdobeTests whether the browser blocks the page from loading the tracker at https://munchkin.marketo.net/munchkin.js |
url: https://munchkin.marketo.net/munchkin.js
passed: true
|
url: https://munchkin.marketo.net/munchkin.js
passed: false
|
url: https://munchkin.marketo.net/munchkin.js
passed: true
|
url: https://munchkin.marketo.net/munchkin.js
passed: false
|
url: https://munchkin.marketo.net/munchkin.js
passed: false
|
url: https://munchkin.marketo.net/munchkin.js
passed: false
|
url: https://munchkin.marketo.net/munchkin.js
passed: false
|
url: https://munchkin.marketo.net/munchkin.js
passed: false
|
url: https://munchkin.marketo.net/munchkin.js
passed: false
|
url: https://munchkin.marketo.net/munchkin.js
passed: false
|
Amazon adsystemTests whether the browser blocks the page from loading the tracker at https://aax-us-east.amazon-adsystem.com/x/px |
url: https://aax-us-east.amazon-adsystem.com/x/px
passed: true
|
url: https://aax-us-east.amazon-adsystem.com/x/px
passed: false
|
url: https://aax-us-east.amazon-adsystem.com/x/px
passed: true
|
url: https://aax-us-east.amazon-adsystem.com/x/px
passed: false
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url: https://aax-us-east.amazon-adsystem.com/x/px
passed: false
|
url: https://aax-us-east.amazon-adsystem.com/x/px
passed: true
|
url: https://aax-us-east.amazon-adsystem.com/x/px
passed: false
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url: https://aax-us-east.amazon-adsystem.com/x/px
passed: false
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url: https://aax-us-east.amazon-adsystem.com/x/px
passed: false
|
url: https://aax-us-east.amazon-adsystem.com/x/px
passed: false
|
AppNextTests whether the browser blocks the page from loading the tracker at https://acdn.adnxs.com/dmp/up/pixie.js |
url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: true
|
url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
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url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: true
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url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
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url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
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url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: true
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url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
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url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
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url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
|
url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
|
Bing AdsTests whether the browser blocks the page from loading the tracker at https://bat.bing.com/bat.js |
url: https://bat.bing.com/bat.js
passed: true
|
url: https://bat.bing.com/bat.js
passed: false
|
url: https://bat.bing.com/bat.js
passed: false
|
url: https://bat.bing.com/bat.js
passed: false
|
url: https://bat.bing.com/bat.js
passed: false
|
url: https://bat.bing.com/bat.js
passed: false
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url: https://bat.bing.com/bat.js
passed: false
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url: https://bat.bing.com/bat.js
passed: false
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url: https://bat.bing.com/bat.js
passed: false
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url: https://bat.bing.com/bat.js
passed: false
|
ChartbeatTests whether the browser blocks the page from loading the tracker at https://pdev.chartbeat.net/ping?h=x&p=x&r=&b= |
url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: true
|
url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
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url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
|
url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
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url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
|
url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
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url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
|
url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
|
url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
|
url: https://pdev.chartbeat.net/ping?h=x&p=x&r=&b=
passed: false
|
CriteoTests whether the browser blocks the page from loading the tracker at https://csm.da.us.criteo.net/iev |
url: https://csm.da.us.criteo.net/iev
passed: true
|
url: https://csm.da.us.criteo.net/iev
passed: false
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url: https://csm.da.us.criteo.net/iev
passed: true
|
url: https://csm.da.us.criteo.net/iev
passed: false
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url: https://csm.da.us.criteo.net/iev
passed: false
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url: https://csm.da.us.criteo.net/iev
passed: false
|
url: https://csm.da.us.criteo.net/iev
passed: false
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url: https://csm.da.us.criteo.net/iev
passed: false
|
url: https://csm.da.us.criteo.net/iev
passed: false
|
url: https://csm.da.us.criteo.net/iev
passed: false
|
DoubleClick (Google)Tests whether the browser blocks the page from loading the tracker at https://securepubads.g.doubleclick.net/static/glade.js |
url: https://securepubads.g.doubleclick.net/static/glade.js
passed: true
|
url: https://securepubads.g.doubleclick.net/static/glade.js
passed: false
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url: https://securepubads.g.doubleclick.net/static/glade.js
passed: true
|
url: https://securepubads.g.doubleclick.net/static/glade.js
passed: false
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url: https://securepubads.g.doubleclick.net/static/glade.js
passed: false
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url: https://securepubads.g.doubleclick.net/static/glade.js
passed: true
|
url: https://securepubads.g.doubleclick.net/static/glade.js
passed: false
|
url: https://securepubads.g.doubleclick.net/static/glade.js
passed: false
|
url: https://securepubads.g.doubleclick.net/static/glade.js
passed: false
|
url: https://securepubads.g.doubleclick.net/static/glade.js
passed: false
|
Facebook PixelTests whether the browser blocks the page from loading the tracker at https://www.facebook.com/tr?id=123 |
url: https://www.facebook.com/tr?id=123
passed: true
|
url: https://www.facebook.com/tr?id=123
passed: false
|
url: https://www.facebook.com/tr?id=123
passed: true
|
url: https://www.facebook.com/tr?id=123
passed: false
|
url: https://www.facebook.com/tr?id=123
passed: false
|
url: https://www.facebook.com/tr?id=123
passed: false
|
url: https://www.facebook.com/tr?id=123
passed: false
|
url: https://www.facebook.com/tr?id=123
passed: false
|
url: https://www.facebook.com/tr?id=123
passed: false
|
url: https://www.facebook.com/tr?id=123
passed: false
|
Google Ad ServicesTests whether the browser blocks the page from loading the tracker at https://www.googleadservices.com/pagead/conversion.js |
url: https://www.googleadservices.com/pagead/conversion.js
passed: true
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: false
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: true
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: false
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: false
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: false
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: false
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: false
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: false
|
url: https://www.googleadservices.com/pagead/conversion.js
passed: false
|
Google AnalyticsTests whether the browser blocks the page from loading the tracker at https://google-analytics.com/urchin.js |
url: https://google-analytics.com/urchin.js
passed: true
|
url: https://google-analytics.com/urchin.js
passed: false
|
url: https://google-analytics.com/urchin.js
passed: true
|
url: https://google-analytics.com/urchin.js
passed: false
|
url: https://google-analytics.com/urchin.js
passed: false
|
url: https://google-analytics.com/urchin.js
passed: false
|
url: https://google-analytics.com/urchin.js
passed: false
|
url: https://google-analytics.com/urchin.js
passed: false
|
url: https://google-analytics.com/urchin.js
passed: false
|
url: https://google-analytics.com/urchin.js
passed: false
|
Google SyndicationTests whether the browser blocks the page from loading the tracker at https://tpc.googlesyndication.com/sodar/UFYwWwmt.js |
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: true
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: true
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: true
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
|
url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
|
Google Tag ManagerTests whether the browser blocks the page from loading the tracker at https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: true
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: true
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
Index ExchangeTests whether the browser blocks the page from loading the tracker at https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: true
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: false
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: true
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: false
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: false
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: false
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: false
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: false
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: false
|
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1
passed: false
|
New RelicTests whether the browser blocks the page from loading the tracker at https://js-agent.newrelic.com/nr-1212.min.js |
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: true
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: true
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
|
QuantcastTests whether the browser blocks the page from loading the tracker at https://pixel.quantserve.com/pixel |
url: https://pixel.quantserve.com/pixel
passed: true
|
url: https://pixel.quantserve.com/pixel
passed: false
|
url: https://pixel.quantserve.com/pixel
passed: true
|
url: https://pixel.quantserve.com/pixel
passed: false
|
url: https://pixel.quantserve.com/pixel
passed: false
|
url: https://pixel.quantserve.com/pixel
passed: false
|
url: https://pixel.quantserve.com/pixel
passed: false
|
url: https://pixel.quantserve.com/pixel
passed: false
|
url: https://pixel.quantserve.com/pixel
passed: false
|
url: https://pixel.quantserve.com/pixel
passed: false
|
Scorecard Research BeaconTests whether the browser blocks the page from loading the tracker at https://sb.scorecardresearch.com/internal-c2/default/cs.js |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: true
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: false
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: true
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: false
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: false
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: false
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: false
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: false
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: false
|
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js
passed: false
|
TaboolaTests whether the browser blocks the page from loading the tracker at https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js |
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: true
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: false
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: true
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: false
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: false
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: false
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: false
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: false
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: false
|
url: https://cdn.taboola.com/libtrc/UNIQUEID/tfa.js
passed: false
|
Twitter AdsTests whether the browser blocks the page from loading the tracker at https://static.ads-twitter.com/uwt.js |
url: https://static.ads-twitter.com/uwt.js
passed: true
|
url: https://static.ads-twitter.com/uwt.js
passed: false
|
url: https://static.ads-twitter.com/uwt.js
passed: false
|
url: https://static.ads-twitter.com/uwt.js
passed: false
|
url: https://static.ads-twitter.com/uwt.js
passed: false
|
url: https://static.ads-twitter.com/uwt.js
passed: true
|
url: https://static.ads-twitter.com/uwt.js
passed: false
|
url: https://static.ads-twitter.com/uwt.js
passed: false
|
url: https://static.ads-twitter.com/uwt.js
passed: false
|
url: https://static.ads-twitter.com/uwt.js
passed: false
|
Yandex AdsTests whether the browser blocks the page from loading the tracker at https://yandex.ru/ads/system/header-bidding.js |
url: https://yandex.ru/ads/system/header-bidding.js
passed: true
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: false
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: true
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: false
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: false
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: true
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: false
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: false
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: false
|
url: https://yandex.ru/ads/system/header-bidding.js
passed: false
|
Yandex MetrikaTests whether the browser blocks the page from loading the tracker at https://mc.yandex.ru/metrika/tag.js |
url: https://mc.yandex.ru/metrika/tag.js
passed: true
|
url: https://mc.yandex.ru/metrika/tag.js
passed: false
|
url: https://mc.yandex.ru/metrika/tag.js
passed: true
|
url: https://mc.yandex.ru/metrika/tag.js
passed: false
|
url: https://mc.yandex.ru/metrika/tag.js
passed: false
|
url: https://mc.yandex.ru/metrika/tag.js
passed: false
|
url: https://mc.yandex.ru/metrika/tag.js
passed: false
|
url: https://mc.yandex.ru/metrika/tag.js
passed: false
|
url: https://mc.yandex.ru/metrika/tag.js
passed: false
|
url: https://mc.yandex.ru/metrika/tag.js
passed: false
|