|
 brave 1.33 |
 chrome 96.4664 |
 duckduckgo 7.65 |
 edge 96.1054 |
 firefox 40.2 |
 focus 40.0 |
 opera 3.2 |
 safari 15.2 |
 yandex 2111.7 |
|---|---|---|---|---|---|---|---|---|---|
| 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: 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: 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: 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
|
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 68051330-2216-4609-a38f-f9844e51f110
result, different first party: 68051330-2216-4609-a38f-f9844e51f110
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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: 1e70161e-ecac-453a-afd8-d1b837813830
result, different first party: 1e70161e-ecac-453a-afd8-d1b837813830
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
result, different first party: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
result, different first party: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 6c51554e-c6c1-42cb-96d5-ea74270cce60
result, different first party: 6c51554e-c6c1-42cb-96d5-ea74270cce60
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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: Error: Load failed
result, different first party: Error: Load failed
unsupported: false
passed: undefined
test failed: true
|
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
result, different first party: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
result, different first party: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
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: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party: 8ec270a2-914e-4910-95fe-eea9f18736ca
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: Error: Can't find variable: BroadcastChannel
result, different first party: Error: Can't find variable: BroadcastChannel
unsupported: true
passed: undefined
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: f50b2dfd-9094-4878-8724-8baa49a59561
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: 03b4e3c4-0049-4bf6-8a37-e0fbf111d3c5
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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: ec52191c-69fe-44d4-b0fc-bacc869e8282
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: e4ad1223-d6ba-4df6-a145-c0cd1158721c
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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: 223a5a5c-33dd-4c58-a002-fba913a186d0
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: 5d96fc16-39c6-49ac-acd4-50f756192460
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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: 3e214438-94f0-4a2e-91bd-eee24fefac54
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: d4e6dbc9-4647-4da6-a4a1-5007a27e4311
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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: 553e6d4f-7eeb-4a61-a04d-516ec12b52b2
result, different first party: Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false
passed: true
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=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 68051330-2216-4609-a38f-f9844e51f110
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 1e70161e-ecac-453a-afd8-d1b837813830
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=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
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=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 6c51554e-c6c1-42cb-96d5-ea74270cce60
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 5d96fc16-39c6-49ac-acd4-50f756192460
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=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
let expiry = new Date();
expiry.setFullYear(expiry.getFullYear() + 1);
document.cookie = `secret=${secret}; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=(\S+)/)[1] : null
result, same first party: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
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: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party: null
unsupported: false
passed: true
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_9748661287573936
result, different first party: fake_4014661496574661
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_8108588606529388
result, different first party: fake_6171532102692405
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_38582516615682727
result, different first party: fake_10885213664698101
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_16066038180820819
result, different first party: fake_49967097891593615
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_34871214517013294
result, different first party: fake_3168110747841768
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_3729042075521627
result, different first party: fake_5088766485919769
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_19470391586881775
result, different first party: fake_11707523597992697
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_28719667831960516
result, different first party: fake_045554224634188234
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_8983170325003162
result, different first party: fake_21328825354686476
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: 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: 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
|
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: 3
result, different first party: 4
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: 3
result, different first party: 4
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: 3
result, different first party: 4
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: 3
result, different first party: 4
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: 3
result, different first party: 4
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: 3
result, different first party: 4
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: 3
result, different first party: 4
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: 3
result, different first party: 4
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: 3
result, different first party: 4
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("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
H1 connectionHTTP/1.x are the classic web connection protocols. If these connections are re-used across websites, they can be used to track users. |
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${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: 68051330-2216-4609-a38f-f9844e51f110
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
result, different first party:
unsupported: false
passed: undefined
test failed: true
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${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: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
result, different first party:
unsupported: false
passed: undefined
test failed: true
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${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: 6c51554e-c6c1-42cb-96d5-ea74270cce60
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
result, different first party:
unsupported: false
passed: undefined
test failed: true
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${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: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.arthuredelstein.net:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.arthuredelstein.net:8901/?mode=write&secret=${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: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party:
unsupported: false
passed: true
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 68051330-2216-4609-a38f-f9844e51f110
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${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:
result, different first party:
unsupported: false
passed: undefined
test failed: true
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${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:
result, different first party:
unsupported: false
passed: undefined
test failed: true
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 6c51554e-c6c1-42cb-96d5-ea74270cce60
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${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: 5d96fc16-39c6-49ac-acd4-50f756192460
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.arthuredelstein.net:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.arthuredelstein.net:8902/?mode=write&secret=${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: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
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: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party:
unsupported: false
passed: true
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:
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:
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:
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
|
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: set HSTS flag
read: read HSTS flag
result, same first party: not tested
result, different first party: Used http
unsupported: false
passed: true
test failed: false
|
write: set HSTS flag
read: read HSTS flag
result, same first party: not tested
result, different first party: Used http
unsupported: false
passed: true
test failed: false
|
write: set HSTS flag
read: read HSTS flag
result, same first party: not tested
result, different first party: Used http
unsupported: false
passed: true
test failed: false
|
write: set HSTS flag
read: read HSTS flag
result, same first party: not tested
result, different first party: Used http
unsupported: false
passed: true
test failed: false
|
write: set HSTS flag
read: read HSTS flag
result, same first party: not tested
result, different first party: Used http
unsupported: false
passed: true
test failed: false
|
write: set HSTS flag
read: read HSTS flag
result, same first party: not tested
result, different first party: Used http
unsupported: false
passed: true
test failed: false
|
write: set HSTS flag
read: read HSTS flag
result, same first party: not tested
result, different first party: Used http
unsupported: false
passed: true
test failed: false
|
write: undefined
read: undefined
result, same first party: undefined
result, different first party: undefined
unsupported: undefined
passed: undefined
test failed: undefined
|
write: set HSTS flag
read: read HSTS flag
result, same first party: not tested
result, different first party: Used http
unsupported: false
passed: true
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: 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
|
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
|
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: 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: 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: 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: 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: 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: 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: 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: 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: 68051330-2216-4609-a38f-f9844e51f110
result, different first party: undefined
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: 1e70161e-ecac-453a-afd8-d1b837813830
result, different first party: undefined
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: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
result, different first party: undefined
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: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
result, different first party: undefined
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: 6c51554e-c6c1-42cb-96d5-ea74270cce60
result, different first party: undefined
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: 5d96fc16-39c6-49ac-acd4-50f756192460
result, different first party: undefined
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: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
result, different first party: undefined
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: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
result, different first party: undefined
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: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party: undefined
unsupported: false
passed: true
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: 68051330-2216-4609-a38f-f9844e51f110
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: 1e70161e-ecac-453a-afd8-d1b837813830
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: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
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: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
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: 6c51554e-c6c1-42cb-96d5-ea74270cce60
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: 5d96fc16-39c6-49ac-acd4-50f756192460
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: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
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: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
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: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party: null
unsupported: false
passed: true
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: 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: 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: 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: 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: 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: 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: 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: 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: undefined
result, different first party: undefined
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: Error: No requests received
result, different first party: Error: No requests received
unsupported: true
passed: undefined
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: 68051330-2216-4609-a38f-f9844e51f110
result, different first party:
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=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 1e70161e-ecac-453a-afd8-d1b837813830
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${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: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
result, different first party:
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=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${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: 6c51554e-c6c1-42cb-96d5-ea74270cce60
result, different first party:
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=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 5d96fc16-39c6-49ac-acd4-50f756192460
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${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: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
result, different first party:
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=${key}`);
}
read: async () => {
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${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: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party:
unsupported: false
passed: true
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: Can't find variable: SharedWorker
result, different first party: Error: Can't find variable: SharedWorker
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: d6245213f4c0d50019310bd04971ef05da96bafb6b2bb1e092addc9dc8e9fea1
result, different first party: fee3c3de275132cb0dc0258f837879158b445cd4a16c4a62b45914d86d0408b3
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: c8451fd81a8f54ffafccd63158ce43e492670d3daae82329efb4e4f56f1dc9cb
result, different first party: 4d506c76419680fe6043fde250da081f90916c101577d607e67e8520d4c66206
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: 79f7a5d70a6367fe19647853864831b8cd816a356e72cce946b5a4d3173b6e64
result, different first party: 11477361c888f70bbbbc242c081f508858566ba3d5c3a97aaddb02187658d705
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: 450b5a0d8c9ea8ca17ffc819f96a3b317bd8562d3173171a1053d39c10b494a2
result, different first party: df0a272440d964115295742f6d3585e651818c7011eae8eaf3d786f8c7fa9841
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: be850331fc3e385938730b09466975816f56299647a114effbaf0f71e74e3cdc
result, different first party: ee5fff7c0d26d3229b6afda3cfa8f7ee80946bc7d4e9a64b3ce84117b4f1c317
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: a8011a552689c539f9c49d197135734d3dbd55b5e587ee5aeb37502a607a8889
result, different first party: 192860afd666aeef91916c6fcec9def84eb6fffe117b25de4da128c4853524ad
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: 3d5d99aa7ece8a0d90157dcc44817a8168fe4cd45e5b396c57b5d5cd479000f1
result, different first party: 835c75d0c3928eaee45cc6fd56a422a5178deaffec02c642c305ba21abecbe3f
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: ec7ee826d36bd1185ca1001957fd9230c4a2a1ea6ba5a80c13e566806c3c7dba
result, different first party: dbb2437b95e070aef96ddb815ae9ccbf7c422e83c20f97d80457ea9076486e64
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: 61ca75e945e58580c1af26e5ef80c299aca83cd216c8ffd8bfa195ad9c0120c1
result, different first party: 3029f3afe1f126e681698abd2b0d6cce80c533435757421831575ced3675bd39
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
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: Error: Web SQL is deprecated
result, different first party: Error: Web SQL is deprecated
unsupported: true
passed: undefined
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: Fri, 31 Dec 2021 06:44:18 GMT
result, different first party: Fri, 31 Dec 2021 06:44:27 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: Fri, 31 Dec 2021 06:39:57 GMT
result, different first party: Fri, 31 Dec 2021 06:40:07 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: Fri, 31 Dec 2021 06:46:17 GMT
result, different first party: Fri, 24 Dec 2021 07:28:51 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: Fri, 31 Dec 2021 18:42:52 GMT
result, different first party: Fri, 31 Dec 2021 18:43:03 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: Fri, 31 Dec 2021 06:32:13 GMT
result, different first party: Fri, 31 Dec 2021 06:32:24 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: Fri, 31 Dec 2021 06:36:29 GMT
result, different first party: Fri, 31 Dec 2021 06:36:38 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: Fri, 31 Dec 2021 06:38:07 GMT
result, different first party: Fri, 31 Dec 2021 06:38:17 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: Fri, 31 Dec 2021 06:33:52 GMT
result, different first party: Fri, 24 Dec 2021 07:12:50 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: Fri, 31 Dec 2021 18:15:59 GMT
result, different first party: Fri, 31 Dec 2021 18:16:09 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
|
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: 68051330-2216-4609-a38f-f9844e51f110
result, different first party: 68051330-2216-4609-a38f-f9844e51f110
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 1e70161e-ecac-453a-afd8-d1b837813830
result, different first party: 1e70161e-ecac-453a-afd8-d1b837813830
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
result, different first party: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
result, different first party: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 6c51554e-c6c1-42cb-96d5-ea74270cce60
result, different first party: 6c51554e-c6c1-42cb-96d5-ea74270cce60
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 5d96fc16-39c6-49ac-acd4-50f756192460
result, different first party: 5d96fc16-39c6-49ac-acd4-50f756192460
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
result, different first party: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
result, different first party: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
unsupported: false
passed: false
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party: 8ec270a2-914e-4910-95fe-eea9f18736ca
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: 68051330-2216-4609-a38f-f9844e51f110
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: 1e70161e-ecac-453a-afd8-d1b837813830
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: 41d5d5e5-4d71-47d0-8eb3-a4815aaf868c
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: 1a3c842f-2f53-4985-8c11-fe07d1ea5299
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: 6c51554e-c6c1-42cb-96d5-ea74270cce60
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: 5d96fc16-39c6-49ac-acd4-50f756192460
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: 9a4105b4-c7e4-4ebd-b415-92a1e3edfa80
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: 8f1ef29d-a135-464c-8e4c-ae29facfd12b
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: 8ec270a2-914e-4910-95fe-eea9f18736ca
result, different first party:
unsupported: false
passed: true
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
| |
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: 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: 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: false
result: loaded insecurely
|
passed: false
result: loaded insecurely
|
passed: false
result: loaded insecurely
|
passed: false
result: loaded insecurely
|
passed: false
result: loaded insecurely
|
passed: false
result: loaded insecurely
|
passed: false
result: loaded insecurely
|
passed: false
result: loaded insecurely
|
passed: false
result: loaded insecurely
|
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
|
| Misc testsThis category includes tests for the presence of miscellaneous privacy features. | |||||||||
GPC enabled first-partyThe 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 to the top-level website. |
header value: undefined
passed: false
|
header value: undefined
passed: false
|
header value: undefined
passed: false
|
header value: undefined
passed: false
|
header value: undefined
passed: false
|
header value: undefined
passed: false
|
header value: undefined
passed: false
|
header value: undefined
passed: false
|
header value: undefined
passed: false
|
GPC enabled third-partyThe 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 to third-parties. |
passed: false
|
passed: false
|
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
|
passed: false
|
passed: false
|
passed: false
|
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: 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: 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: 667
desired value: 1385
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 667
desired value: 1445
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 667
desired value: 1427
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 667
desired value: 1453
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 667
desired value: 1429
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 667
desired value: 1429
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 667
desired value: 1450
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 667
desired value: 1432
passed: false
|
expression: undefined
desired expression: innerHeight
actual value: 667
desired value: 1435
passed: false
|
Media query screen widthWidth of the user's screen in pixels. |
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: undefined
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
outerHeightHeight of the browser window in pixels, including browser chrome. |
expression: outerHeight
desired expression: innerHeight
actual value: 530
desired value: 1385
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 667
desired value: 1445
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 546
desired value: 1427
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 556
desired value: 1453
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 547
desired value: 1429
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 547
desired value: 1429
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 555
desired value: 1450
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 667
desired value: 1432
passed: false
|
expression: outerHeight
desired expression: innerHeight
actual value: 667
desired value: 1435
passed: false
|
screen.heightHeight of the user's screen, in pixels. |
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1385
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1445
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1427
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1453
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1429
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1429
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1450
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1432
passed: false
|
expression: screen.height
desired expression: innerHeight
actual value: 667
desired value: 1435
passed: false
|
screen.widthWidth of the user's screen, in pixels. |
expression: screen.width
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 375
desired value: 980
passed: false
|
expression: screen.width
desired expression: innerWidth
actual value: 375
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
|
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: 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 |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
__hsscHubSpot tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
__hstcHubSpot tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
__sDrip.com email address tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
_hsencHubSpot tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
_openstatYandex tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
dclidDoubleClick Click ID (Google) |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
fbclidFacebook Click Identifier |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
gclidGoogle Click Identifier |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
hsCtaTrackingHubSpot tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
igshidInstagram tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
mc_eidMailchimp Email ID (email recipient's address) |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
mkt_tokAdobe Marketo tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
ml_subscriberMailerLite email tracking |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
ml_subscriber_hashMailerLite email tracking |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
msclkidMicrosoft Click ID |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
oly_anon_idOmeda marketing 'anonymous' customer id |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
oly_enc_idOmeda marketing 'known' customer id |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
rb_clickidUnknown high-entropy tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
s_cidAdobe Site Catalyst tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
vero_convVero tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
vero_idVero tracking parameter |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
wickedidWicked Reports e-commerce tracking |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
yclidYandex Click ID |
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 13495415946350398
passed: false
|
value: 8799071570497363
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: false
|
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: 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
|
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
|
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
|
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
|
url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: true
|
url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
|
url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
|
url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: true
|
url: https://acdn.adnxs.com/dmp/up/pixie.js
passed: false
|
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
|
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
|
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
|
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: true
|
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
|
url: https://csm.da.us.criteo.net/iev
passed: true
|
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: true
|
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
|
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: 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
|
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: 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
|
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: 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
|
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
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url: https://google-analytics.com/urchin.js
passed: false
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url: https://google-analytics.com/urchin.js
passed: true
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url: https://google-analytics.com/urchin.js
passed: false
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url: https://google-analytics.com/urchin.js
passed: false
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url: https://google-analytics.com/urchin.js
passed: true
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url: https://google-analytics.com/urchin.js
passed: false
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url: https://google-analytics.com/urchin.js
passed: false
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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
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url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: true
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url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
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url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
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url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: true
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url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
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url: https://tpc.googlesyndication.com/sodar/UFYwWwmt.js
passed: false
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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: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
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url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: true
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url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
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url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
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url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
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url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
|
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL
passed: false
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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: 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
|
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
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url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
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url: https://js-agent.newrelic.com/nr-1212.min.js
passed: true
|
url: https://js-agent.newrelic.com/nr-1212.min.js
passed: false
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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: 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
|
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
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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
|
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: 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
|
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
|
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: 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: 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
|