Hacker News Reader

Do they bother resolving internal domain names such as example.lan? Otherwise that would be stupid and leaky.

Also intranet.mycompany.com. There's not a chance that a resolver would know, which domains are internal and which are not.

With Windows and AD “internal” names are FQDN, which resolves fine with the DNS server provided with the DHCP settings.

Of course DoH will break this and leak. Enterprises everywhere will hate this and ban Firefox.