What do websites know about you?

Without asking anything, every site you visit learns roughly where you are, which internet provider you use and what device you're on, and can recognise you from site to site. See it for yourself, then follow the fixes for your browser, quickest first, and check again.

Your IP address is read by our server only to show it back to you: nothing is stored or logged. Your last result and your last canvas identifiers stay in your browser, to compare with your next check. To test blocking, your browser tries to reach well-known tracker addresses, without cookies and without running any of their code.