Agent-X · browser fingerprint checker
Quick IP check…
A browser fingerprint is a set of traits your browser and device reveal on every visit: how they render graphics, which fonts and audio hardware they have, screen size, timezone, language, and how they negotiate an encrypted connection. Taken together those traits are stable and distinctive enough to recognise the same visitor again — even after cookies are deleted.
A site runs a handful of small tests in the background and turns the answers into one identifier. Nothing is stored on your device, so there is nothing for you to clear: the identifier is recomputed from your own configuration every time.
Individually, a trait such as the screen resolution says little. Combined, a dozen such traits describe a configuration shared by very few people — which is exactly what makes recognition possible.
Anti-fraud teams use fingerprints to spot account takeovers, bot traffic and duplicate registrations, and to keep a session tied to the device that started it.
The same technique is used for analytics and advertising: it lets a service recognise a returning visitor without asking for consent to store anything on their device.
A cookie is a small piece of data the site stores in your browser — you can delete it, and private mode discards it automatically.
A fingerprint is not stored anywhere: it is measured anew on each visit. Clearing browser data, switching to private mode or changing IP does not reset it, which is why it survives where cookies do not.
The check above shows the network half of the picture — the address you exit from, whether the real address leaks through WebRTC or DNS, and whether the timezone and languages match the country of that address.
Press "Full check" for the complete diagnostics; the links in the footer lead to independent checkers that look at the browser half of the fingerprint in more detail.
An antidetect browser gives each profile its own consistent set of traits — graphics, fonts, screen, timezone, languages — and keeps that set stable between sessions, so a profile looks like one ordinary device rather than a new one each time.
Consistency matters more than uniqueness: a profile whose timezone or language contradicts its IP address stands out more than a plain default configuration.
Not completely. The traits used are ordinary browser features that pages rely on. You can reduce the detail exposed, but a site can always measure something — which is why consistency between the traits matters more than hiding them.
No. A VPN changes only the address you exit from. The browser traits stay the same, and a new country with an unchanged timezone and language makes the mismatch more visible, not less.
Private mode clears cookies and history when the window closes, but the fingerprint is recomputed from your configuration, so it is unaffected.
It is widely used for fraud prevention and security. Using it for tracking and advertising is regulated differently across jurisdictions and usually requires disclosure to the visitor.
Source: Written from public material on browser fingerprinting published by fingerprint.com