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Was able to find it. Actually it's using etags. They work even if you disable cookies. Perfect identification, similar to cookies. Sites were using it befor
by sbov 11y ago
Was able to find it. Actually it's using etags. They work even if you disable cookies. Perfect identification, similar to cookies. Sites were using it before it came to light:
https://en.wikipedia.org/wiki/HTTP_ETag#Tracking_using_ETags https://en.wikipedia.org/wiki/HTTP_ETag#Tracking_using_ETags
- pdkl95 11y agoYou don't even need ETags - if the server sends out a unique (or mostly unique) "Last-Modified" header, the browser will return the cookie in "If-Modified-Since".