Result
Checking…
Fingerprint ID Checking…
Calculated in your browser from the details below. Open this page in a private window: if the ID stays the same, sites can recognize you there too.
IP and browser consistency
Each check compares what your browser says with what your connection shows.
- IP type Checking…
- Time zone Checking…
- Language Checking…
- Headers Checking…
- WebRTC Checking…
- DNS Checking…
How WebRTC leaks workSee which DNS servers you useIP fraud score
Signs of spoofing
Spoofing tools and some privacy browsers change fingerprint details. These checks look for the traces they leave.
- Canvas Checking…
- Properties Checking…
- Web Worker Checking…
- Graphics Checking…
- Platform Checking…
- Automation Checking…
- Screen Checking…
What your browser reveals
Each item on its own is common. Together they are often unique to your browser.
- User agent
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- Browser
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- Operating system
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- Platform
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- Languages
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- Accept-Language header
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- Time zone
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- Date and number format
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- Screen
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- Window
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- Color depth
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- Pixel ratio
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- CPU threads
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- Memory
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- Touch points
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- Canvas hash
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- Graphics vendor
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- Graphics card
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- WebGL hash
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- Audio fingerprint
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- Installed fonts
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- Media devices
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- Plugins
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- Do Not Track
- Checking…
- Global Privacy Control
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- Cookies
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- Local storage
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- Color scheme
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What a browser fingerprint is
Every browser tells websites a lot about itself: its version, your operating system, screen size, language, time zone, installed fonts, graphics card and how it draws text and images. None of this needs permission.
Each detail is shared by many people, but the combination rarely is. Sites hash it into an ID that stays the same when you clear cookies, open a private window or change your IP address.
How sites use it
Ad and analytics companies use fingerprints to follow you across sites without cookies. Banks, shops and social networks use them against fraud: a login from a known fingerprint is trusted, and many accounts sharing one fingerprint get flagged as the same person.
Anti-fraud systems also check whether the pieces fit together. A browser set to Chinese with a German IP, a time zone that doesn't match the IP, or a Windows user agent with an Apple graphics chip all raise the risk score.
How to make your browser harder to track
- Use a browser with fingerprinting protection: Brave randomizes canvas and audio output, Firefox can turn on resistFingerprinting, and Tor Browser makes every user look the same.
- Keep extensions to a minimum. Each one can change what sites see and make you more unique.
- Don't rely on a VPN alone. It changes your IP address but not your fingerprint.
- Fix WebRTC and DNS leaks first: they reveal your real IP address no matter what your fingerprint looks like.
If you manage several accounts
Platforms link accounts that share a fingerprint or an IP address. Each account needs its own browser profile with its own fingerprint, and an IP whose country, time zone and language match that profile.
Anti-detect browsers create these profiles, but a badly configured one is easier to spot than a normal browser. Run this test inside each profile: the result should be "Looks like an ordinary browser" with no signs of spoofing.
Questions
Does a VPN change my browser fingerprint?
No. A VPN changes your IP address, but your browser, fonts, screen and graphics card stay the same, so the fingerprint ID stays the same too. A VPN can even make you stand out if your time zone and language don't match the VPN server's country.
Why does my fingerprint ID change every time?
Your browser randomizes some details, usually canvas or audio output. Brave and Firefox with fingerprinting protection do this on purpose so the ID can't follow you. The check under Signs of spoofing shows it.
Do you store my fingerprint?
No. The fingerprint is calculated in your browser and never sent to us. To tell you whether the ID changed since your last visit, the page keeps the last ID in your own browser's local storage.
Guides
- What is an IP address?
An IP address is the number that tells the internet where to send data meant for you. Here's what it looks like, the different kinds, and what yours says about you.
- How to find your IP address
Your public IP takes one click to find. Your private IP depends on the device. Here are the exact steps for each.
- IPv4 vs IPv6: what's the difference?
IPv6 replaces IPv4 because the world ran out of addresses. Here's how the two compare, how to tell which you're using, and why IPv6 matters if you use a VPN.
- What is a DNS leak and how do you fix it?
Even with a VPN on, your device may still ask your internet provider for every website you visit. That's a DNS leak. Here's how to spot one and stop it.