How Much Does Your Browser Give Away?
We read Canvas, WebGL, fonts, audio and more, and score how many tracking signals your browser exposes - even with a VPN active.
🔎 Go deeper on one signal
The rows above read canvas and audio twice: a value that differs between the two reads is randomised, counted as protection and left out of the score, and a vector that could not be read is not measured and leaves the score too. Each of these pages takes one vector on its own, reports every value in full, and runs the probe twice to tell a stable signal apart from a randomised one.
What Is Browser Fingerprinting?
Browser fingerprinting collects dozens of attributes from your browser - Canvas rendering, GPU info, installed fonts, screen size, Audio API behavior, and more. When combined, these create a near-unique profile that trackers can use to re-identify you across sessions, even without cookies and even with a VPN.
How to Reduce Your Fingerprint
- Brave Browser: Built-in fingerprint randomization
- Firefox: Enable
privacy.resistFingerprintingin about:config - uBlock Origin: Blocks many canvas/WebGL fingerprinting scripts
- Tor Browser: Maximum fingerprint normalization across all users
- Avoid installing unnecessary fonts, extensions, and plugins
Browser Fingerprint Test - FAQ
Common questions about browser fingerprinting, tracking, and how to protect your privacy online.
What is a browser fingerprint?
A browser fingerprint is a unique combination of technical characteristics collected from your browser - including Canvas rendering, WebGL GPU information, installed fonts, screen resolution, audio processing behavior, and dozens of other signals. When combined, these attributes create a profile that identifies you across websites without using cookies. Unlike cookies, fingerprints cannot be deleted and persist even after clearing your browser history.
Does a VPN protect me from browser fingerprinting?
No. A VPN only hides your IP address - it does nothing to change your Canvas fingerprint, WebGL GPU signature, installed fonts, screen resolution, or Audio API behavior. This means you can be tracked and re-identified across websites even when using a VPN. For real fingerprint protection, you need a privacy-focused browser like Brave or Tor Browser, not just a VPN.
What is Canvas fingerprinting and why is it dangerous?
Canvas fingerprinting exploits the fact that every device renders graphics slightly differently depending on the GPU, driver version, and operating system. By drawing invisible text and shapes with the HTML5 Canvas API and reading back the pixel values, websites get a unique hash that identifies your specific hardware combination. This technique is used by many websites and ad networks for cross-site tracking without your knowledge or consent.
Which browser has the best fingerprint protection?
Brave Browser has fingerprint protection built in for everyday use - it randomizes Canvas, WebGL, Audio, and font fingerprints per session and per site, so the values do not link one site to the next. Tor Browser provides maximum protection by making all users appear identical, but is slower and blocks many sites. Firefox with privacy.resistFingerprinting enabled is a good middle ground. Chrome and Safari offer almost no fingerprint protection by default.
What does the fingerprint risk score mean?
The score, from 0 to 100, adds points for each signal your browser hands to any script: canvas readable (20), audio (15), WebGL (15), up to 20 for detected fonts, and 5 each for no Do Not Track, plugins, CPU cores, memory and more than one language. A higher score means more signals are available to a tracker. It is not a measure of how rare your browser is - that needs a database of other browsers, which this test does not have.
Can incognito mode prevent browser fingerprinting?
No. Incognito or private browsing mode only prevents local storage of cookies, history, and downloads - it does not change your browser's fingerprint. Your Canvas rendering, WebGL GPU signature, fonts, screen resolution, and all other technical attributes remain identical in incognito mode. Advertisers and trackers can still identify you across sessions using your fingerprint even if cookies are disabled.
How is this browser fingerprint test different from others?
Most fingerprint tests show you raw data without context. VPNMeter's test is designed specifically for VPN users - it shows not just what signals are exposed, but whether your VPN provides any protection against fingerprinting (spoiler: it doesn't). We test Canvas, WebGL, fonts, audio, screen, browser identity, and privacy signals, then give you a clear risk score and actionable steps to reduce your exposure. No data is stored or shared.