What it does
BrowserLeaks is a suite of browser diagnostics covering IP information, WebRTC, DNS, TLS and device-fingerprinting surfaces.
BrowserLeaks separates server-visible IP and request headers from JavaScript device details, WebRTC/STUN observations and TLS fingerprints. Choose the panel for the mechanism being investigated, then compare the same browser configuration before and after a change. A result concerns that browser, API and test path; one clear panel cannot establish privacy for every application. The site says it does not store user fingerprints or set non-essential cookies, while allowing that some APIs contact third parties and analytics may be temporarily active. Site Settings controls those options. Browser geolocation is a separate permission-based capability from IP-database location.
Strengths
- Separates several browser and network disclosure mechanisms
Best for
- Understanding browser-visible network information
Sources
- Browserleaks - Check your browser for privacy leaks (Oct 26, 2026)