Free tool · Browser fingerprint test
How unique is your browser?
Websites can identify you without cookies. Your browser gives away a combination of settings, hardware and capabilities that works like a fingerprint. Here is yours.
- · high-entropy signals
- · medium
- · low
Scanning
Your browser fingerprint
Calculating…
Collecting data points…
Trackability…
- Data points
- ·
- High
- ·
- Medium
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- Low
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Everything runs in your browser. Your results are not sent to our servers.
- Runs entirely in your browser
- Results never sent to our servers
- No sign-up
- Free
The readout
What your browser reveals
Every data point below can be read by any website you visit, with no permission required.
Scanning your browser…
Tracking without cookies
What is browser fingerprinting?
It identifies you by combining dozens of data points your browser exposes automatically: your screen resolution, installed fonts, graphics card, time zone, language settings and more. Each one is common on its own, but the combination is often unique.
You can't clear it
Unlike cookies, there is nothing stored on your device to delete. Most people have no idea it is happening, because nothing in the browser shows it.
Who uses it?
Advertising networks use it to track you across websites even if you block cookies. Fraud detection systems use it to spot suspicious logins. Some sites use it to enforce device limits on streaming or software licences.
Screen·
Time zone·
Languages·
Graphics·
Canvas·
Fonts·
Together…
Blend in
How to reduce your fingerprint
You can't make it disappear, but you can make it far less distinctive.
Stay mainstream
Use a mainstream browser such as Chrome or Firefox with default settings on a common operating system. The more you customise your browser, the more unique you become.
Block the trackers
PremierVPN Protect is a free extension for Chrome and Firefox that blocks ads, trackers, cookie banners, malware and WebRTC leaks, and some fingerprinting techniques.
Get Protect, free →Hide your IP address
A VPN hides your IP address and location, removing one of the strongest identifying signals. PremierVPN keeps no activity logs.
See plans →Tor Browser
Tor Browser is designed to make all its users look identical. It works, but it comes with real speed and usability trade-offs.
Worth knowing
A VPN helps, but it is not enough
A VPN hides your IP address and location. But your canvas fingerprint, graphics card, screen resolution and fonts are still visible. For serious privacy, combine a VPN with a fingerprint-resistant browser and an ad and tracker blocker.
Questions
About browser fingerprinting
What is browser fingerprinting?
It identifies you by combining dozens of details your browser exposes automatically: your screen resolution, installed fonts, graphics card, time zone, language settings and more. Each detail is common on its own, but the combination is often unique, so it can recognise your browser from one site to the next.
Can I clear my fingerprint like a cookie?
No. Cookies are stored on your device and you can delete them. A fingerprint is worked out fresh each time from how your browser and device behave, so there is nothing to clear. You can only make it less distinctive.
How is the entropy score worked out?
It is a rough estimate, not a measurement against other people's browsers. Each data point is weighted by how identifying that kind of signal tends to be (about 4 bits for high, 2 for medium and half a bit for low) and the weights are added up. As a guide, 17 bits is enough to pick out one browser in about 131,000, and 25 bits one in about 33 million.
Why does turning on Do Not Track make me more unique?
Most people leave Do Not Track unset, so switching it on puts you in a smaller group. Websites are also free to ignore it. The same goes for other unusual settings: the more you customise your browser, the more you stand out.
Does a VPN stop fingerprinting?
Not on its own. A VPN hides your IP address and location, which removes one of the strongest identifying signals. But your canvas fingerprint, graphics card, screen resolution and fonts are still visible. Combine a VPN with a fingerprint-resistant browser and an ad and tracker blocker.
Who uses browser fingerprinting?
Advertising networks use it to follow you across websites even when you block cookies. Fraud detection systems use it to spot suspicious logins. Some sites use it to enforce device limits on streaming or software licences.
Is anything sent to PremierVPN?
Your results are not. Every check runs in your browser and the results stay there. We only count that the test was run, so we know which free tools people use.
More free tools: IP leak test · password generator · encrypted notes · share a password
Start with the basics
Take your IP address out of the picture
A VPN removes your IP address from your fingerprint. Our free browser extension blocks trackers and WebRTC leaks. Together they make you harder to track.
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