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FingerBrowser
Fingerprint check

What do websites see about you?

This free check reads the same signals that detection systems use and tells you whether they tell a consistent story.

Consistency score

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Analyzing your browser…

Are your profiles isolated?

The check runs in your browser. We don’t store your results.

Consistency checks

Are your profiles isolated?

See whether two browser profiles look like the same device or connection. Copy this profile’s code, open this page in the other profile and paste it there. The code holds short hashes of 14 signals, not the values, and the comparison runs in your browser.

Network

IP address
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Location
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Network (ISP)
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Time zone of IP
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Connection
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WebRTC addresses
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Hardware and graphics

Screen
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CPU cores
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Device memory
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GPU vendor
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GPU renderer
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Canvas hash
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WebGL hash
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Audio hash
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Fonts detected
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Browser

User agent
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Platform
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Languages
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Browser time zone
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Automation flag
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For developers

Read the result from your automation scripts. When a check finishes, the page sets window.fingerbrowser to the score, every check with its id, level and details, and this profile’s isolation code, and fires a fingerbrowser:check event.

// Playwright
await page.goto('https://fingerbrowser.com/tools/fingerprint-check');
const handle = await page.waitForFunction(() => window.fingerbrowser);
const { score, checks, code } = await handle.jsonValue();
console.log(score, checks.filter((c) => c.level !== 'pass'));

What’s your browser personality?

Turn this report into a shareable personality card and see how rare your setup is.

Take the test