Browser Fingerprint Checker

What browser fingerprinting is

A fingerprint is an identifier built from details your browser reveals to every website: screen size, time zone, language, installed fonts, graphics card, audio processing and dozens of smaller settings. None of these identifies you on its own, but together they are often unique. Unlike a cookie, a fingerprint cannot be deleted, and it works in private browsing windows too.

How to read the result

The test shows the details your browser exposes to any site that asks. The more unusual the combination, the easier you are to recognise across sites and visits. Customised setups, with rare fonts, unusual window sizes or many extensions, often stand out more than a default installation.

What actually helps

• Use a browser that resists fingerprinting. Tor Browser makes every user look the same, Brave randomises some values, and Firefox has fingerprinting protection built in.
• Keep your setup ordinary: a common browser, a standard window size and few extensions.
• Avoid one-off tweaks. Changing only your user agent or a single setting can make your combination rarer, not safer.
• Block trackers, since many fingerprinting scripts come from third-party ad and tracking networks.

Why it matters

Fingerprinting is used for fraud prevention and bot detection, but also to follow people who have cleared their cookies or refused consent. Knowing what your browser gives away is the first step to controlling it. The browser privacy score shows your wider picture.