3 ms·
RFC7766 "Recursive server (or forwarder) implementations MUST support TCP so that they do not prevent large responses from a TCP-capable server from reaching it
by kubanczyk 7y ago
RFC7766 "Recursive server (or forwarder) implementations MUST support TCP so that they do not prevent large responses from a TCP-capable server from reaching its TCP-capable clients."
large responses == some DNSSEC, some IPv6