VPN and Proxy Security
Why a VPN Alone Does Not Hide Browser Fingerprinting
Separate VPN network protection from browser graphics, font and device signals. Check changes with WebRTC, DNS and fingerprint tests.
By BrowserCheakA VPN primarily changes the network path
A VPN can change the public egress seen by a website, while page code still runs inside your browser. Changing the network alone does not automatically change screen size, fonts, graphics rendering or language. Some products include additional protections; verify those separately.
Make three comparisons before and after connecting
Record the HTTP public address, run the WebRTC test to compare public ICE candidates and use the DNS test to observe resolvers. Use the fingerprint test for local browser signals. Keep the browser and window size the same to reduce unrelated changes.
Interpret differences against your expectations
A public ICE address different from HTTP egress calls for a routing review, but may also result from split tunneling or multiple adapters. DNS resolvers often differ from HTTP egress; compare them with the expected provider. Failed probes or missing observations are unknown results, not a verified VPN pass.
Accounts and sessions still matter
Logging in to the same account on two networks lets a site associate visits without fingerprinting. Evaluate accounts, cookies, network paths and browser signals together rather than treating one tool as a complete anonymity solution.