What is browser fingerprinting?

Combining screen, fonts, WebGL, timezone, and more to recognize browsers — often without cookies.

How do I improve browser privacy?

Use Firefox/Safari strict modes, uBlock Origin, disable third-party cookies, and consider Tor for high threat models.

No — it mainly clears local history; sites still see similar signals per session.

Sites tailor JS and track you; outdated UA strings look suspicious to fraud systems.

Yes — IP Checker Online browser information tool is free.

Developer Tools

A browser privacy check shows what websites can infer without cookies — user agent, screen size, timezone, language, and fingerprinting surfaces.