SYSTEM LOGS

Best browser for privacy: Brave vs Firefox, Tor, Mullvad, DuckDuckGo, Safari, Chrome and more compared on trackers, fingerprint, IP address and built-in VPN.

What is a browser fingerprint? How browser fingerprinting works, what sites use it for, how to test your browser, and how Firefox, Brave and Safari reduce it.

A real person, a robot, or a mask? How sites catch bots, headless browsers, and anti-detect tools, and how to check your own browser.

Your browser hums and keeps a list of voices you never hear, and both quietly identify you. How audio and speech-voice fingerprinting work, why they survive a VPN, and how to check your own.

Passive OS fingerprinting reads your operating system from the first TCP packet. How p0f and JA4T work, why proxies and VPNs show up, and how to check yours.

For months your privacy and your trust shared one number. That was a lie. Here is why I split packet.guru into two scores and what the new cards now see.

What JA3 and JA4 TLS fingerprints are, how both are built from the Client Hello, why JA3 stopped working and what JA4+ and Encrypted Client Hello change.

IP changes aren't enough. Profiling uses timezones & headers to expose you. Learn to pass the ultimate browser privacy check.

User agent spoofing is easy to detect. A switcher rewrites one string, while Sec-CH-UA Client Hints, navigator.platform and touch support still tell the truth.

A timezone mismatch means your browser's time zone and your IP location disagree, usually behind a VPN. How sites detect it, when it is normal, how to fix it.