• davel [he/him]@lemmy.ml
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    10 months ago

    They can’t even reliably see domains when you use HTTPS, because some IP addresses serve many domains.

    • dracs@programming.dev
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      10 months ago

      That’s not entirely true. It’s only very recently that browsers have started using a new system called Encrypted Client Hello which hides the domain of the request. Prior to this all requests needed too have the Host field unencrypted so the receiving server knows which certified to respond with. I imagine there’s still quite a few servers which don’t support the new setup still.

        • Tja@programming.dev
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          10 months ago

          I don’t know about that. Technically it wouldn’t be necessary but I can see providers limiting you to a single IP instead of a /64 and needing to do it anyway, because the tech exists anyway. Or for privacy reasons. There is IPv6 NAT, after all…

    • kn33@lemmy.world
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      10 months ago

      They can still (mostly) sniff SNI for now which gives them a domain even when the IP isn’t unique.

    • psmgx@lemmy.world
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      10 months ago

      Who cares about trying to MITM the HTTPS when chances are they’re sending DNS requests to the ISPs DNS server on unencrypted UDP/53? Comcast is the only ISP doing large scale DNSSEC, and even then that’s with their DNS, so they could still see what you’re looking at.

      I may not know what specific page you’re looking at but I can sure as shit make some assumptions about all of the DNS lookups for FurAffinity.net or Missile-Gayboy.com. That’s probably enough for marketing purposes.

      • rokzoi@lemmy.world
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        10 months ago

        Correct me if i am wrong but DNSSEC has nothing to do with encryption of your request. It is used to verify that the record you received is from the correct authority. Furthermore your DNS requests have to go through your ISP even if you don’t use their DNS server as it is your only connection to the Internet.

        The only thing you could do is encrypt the traffic somehow (dns over https exists), but then you have to trust that provider instead, and your ISP can still see the IP addresses you try to reach after you know them and might be able to still do a domain lookup using DNS if it is also configured to return the domain when looking up the IP. If they would put in the effort of course.