EVERCOOKIE TEST

Evercookie Test

An evercookie is a marker written into several browser storages at once (cookie, localStorage, sessionStorage, IndexedDB, window.name). Clear only the cookie and the marker respawns from the rest.

checking…

"Alive" means the marker survived in that storage. Hit "reset" — and it is instantly respawned from the other storages: that is how evercookie works, which is why clearing cookies alone does not stop tracking. The marker is used only on this page and never sent to any external server.