DoH
DNS over HTTPS
Application Layer — DNS
Protocol Overview
Full Name
DNS over HTTPS
Abbreviation
DoH
OSI Layer
Application Layer
Category
DNS
Default Port
443
RFC
RFC 8484
About DoH
DNS resolution encrypted within HTTPS connections. Prevents DNS eavesdropping and manipulation by ISPs and network operators.
Application Layer
DNS
Port 443
Standards Reference
DoH is defined in RFC 8484, published by the Internet Engineering Task Force (IETF). RFCs are the official standards documents for internet protocols and are freely available for public review.