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It can. The domain name is not sent in the clear in an HTTPS request. Instead, the connection is opened against the IP address and the domain name is moved to a Host: header which is encrypted.


SNI sends the server name in plain text


Correct (I considered explaining SNI but ultimately didn't bother), and a determined attacker could probably figure out a large number of the sites you visit by the IP as well.


Right, and even still it's pretty trivial to reverse a domain from an IP address in most cases.




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