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by vezycash 2280 days ago
My explanation was wrong...

Google support page explation for private DNS doesn't explain anything. Just recommends leaving it on.
3 comments
tuananh 2280 days ago
> Private DNS allows you to set the DNS server the phone should use instead of your ISP's.

iOS does support that.

link
jeroenhd 2280 days ago
It's more than that, private DNS is not just a different DNS server, it's a DNS over TLS (DoT) server. This means encrypting the lookups to prevent the ISP from tracking the host names you visit.

Many DNS servers don't support DoT and some support DoH (DNS over HTTPS) instead.

link
clairity 2280 days ago
they recommend leaving it on because then all your dns queries go to google and no one else by default--their "private dns" defaults to the very unprivate google dns servers.
link