Sites combine what your browser reports, such as your screen, fonts, graphics card, language and time zone, into an ID. It needs no cookie, so clearing cookies or opening a private window leaves it unchanged.
Does a VPN change my fingerprint?
No. A VPN changes your IP address, and the fingerprint comes from your browser and device. A VPN can even stand out: if your IP says Germany and your system clock says Tokyo, a site can compare the two.
How do I reduce my fingerprint?
Tor Browser and Mullvad Browser make their users look alike. Firefox has a resistFingerprinting setting, and Brave randomizes what each site reads. Changing only the user agent tends to backfire, because your graphics card and fonts still point to the real system.
Why did my fingerprint change?
A browser update, a new font or a new monitor can each change it. If it differs on every run, your browser is randomizing its readings, and the Canvas output row shows that.
Do you store these readings?
No. They are calculated in your browser and this page does not send them to our server. Our server sees what any site sees: your IP address and request headers.
Columbus, United States