DNS-over-QUIC (DoQ)

DNS-over-QUIC (DoQ, RFC 9250) is a privacy-preserving DNS transport that runs DNS queries over the QUIC protocol on UDP port 853. QUIC provides built-in encryption (TLS 1.3), multiplexing without head-of-line blocking, and faster connection establishment than TCP-based alternatives like [[dns-over-tls|DoT]]. DoQ offers lower latency than [[dns-over-https|DoH]] for bulk queries and is particularly advantageous on mobile networks where connections frequently change.