Privacy Blog
Plain-language explainers on browser tracking, fingerprinting, and network leaks — each one paired with a hands-on test you can run right now.
Detector accuracy update: what got more honest
Font detection, WebRTC timeouts, cookie-store reads and benchmark labels all got stricter. Here is what changed — and how to re-run your before/after comparison.
After a password breach: how stolen logins get used
Leaked passwords are tried automatically on thousands of sites within hours. Here is how credential stuffing works and the exact steps that stop it.
Browsers are changing tracking again: what it means for your fingerprint
Chrome keeps postponing third-party cookie removal while Safari and Firefox already block them — and fingerprinting fills the gap. Here is what the shifting landscape means and how to test yourself.
Third-party trackers explained: who is watching you across the web
Third-party trackers are scripts and cookies from domains other than the one you are visiting. They build profiles of your browsing across multiple sites. Here is how they work and how to spot them.
Client Hints explained: how your browser advertises your device to websites
Client Hints is a browser API that lets websites ask for detailed device information — screen size, memory, user agent data — in a structured way. Here is why it matters for privacy.
GPC and Do-Not-Track explained: the privacy signals your browser can send
Global Privacy Control and Do-Not-Track are browser signals that tell websites you do not want to be tracked or have your data sold. Here is what they actually do — and what they do not.
Canvas fingerprinting explained: the invisible tracker with no cookies
Websites can identify you without cookies by asking your browser to draw a hidden image. Tiny hardware differences make your drawing unique — here is how it works and what helps.
DNS privacy explained: who sees every site you look up
Before your browser loads a page, it asks DNS where that site lives. Those lookups reveal your browsing to whoever runs the resolver — here is how encrypted DNS changes the picture.
WebRTC leaks explained: how your real IP can slip past a VPN
WebRTC helps video calls work in your browser — but its connection setup can expose your real IP address even when a VPN is on. Here is what actually leaks and how to check.
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