HOW UNIQUE IS YOUR BROWSER?
Websites can recognize you without cookies by combining dozens of small details your browser reveals: screen size, fonts, graphics card, time zone, language, and how your device renders images and audio. This test shows exactly what a tracking script can read and estimates how identifiable you are.
Private by design: the analysis runs entirely in your browser. Nothing is uploaded or stored. The two optional network tests further down contact a third-party server only if you click them.
ANALYZING...
WHAT YOUR BROWSER REVEALS
SPONSORED_INTELLIGENCE
HOW TO REDUCE YOUR FINGERPRINT
OPTIONAL NETWORK TESTS
These tests need to contact an external server, so they only run when you press the button.
Public IP lookup
Shows the public IP address websites see. Sends a request to api.ipify.org.
WebRTC leak test
Checks whether WebRTC exposes your local or public IP to scripts, even behind a VPN. Uses a Google STUN server.
UNDERSTANDING BROWSER FINGERPRINTING
What is it?
Browser fingerprinting identifies a device by collecting many technical attributes instead of storing a cookie. Each attribute is common on its own, but the combination is often unique.
Because nothing is saved on your device, clearing cookies or using private mode does not remove it.
What this test measures
- Canvas: pixels produced by your GPU, drivers and fonts
- WebGL: graphics card vendor, renderer and limits
- Audio: how your audio stack processes a signal
- Fonts: which common fonts are installed
- Hardware & display: screen, CPU cores, memory, touch
- Locale & privacy signals: language, time zone, DNT, GPC
How the score works
Each attribute is assigned an approximate number of bits of identifying information, based on typical values from public fingerprinting research. The bits are added together to estimate how identifiable the combination is.
Treat it as an educational estimate: many attributes are correlated, so the real number is usually lower, and a true population measurement would need a large dataset of visitors.
Randomization detection
The test draws the same hidden canvas and audio signal twice. If the results differ, your browser adds random noise, which is how Brave and Firefox's strict protection modes defeat fingerprinting.
Tor Browser takes the opposite approach and makes every user look identical.