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IPFYI
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DoT

DNS over TLS

Application Layer — DNS

Protocol Overview

Full Name DNS over TLS
Abbreviation DoT
OSI Layer Application Layer
Category DNS
Default Port 853
RFC RFC 7858

About DoT

DNS resolution encrypted with TLS on a dedicated port. Provides DNS privacy while remaining distinguishable from web traffic.

Application Layer DNS Port 853

Standards Reference

DoT is defined in RFC 7858, published by the Internet Engineering Task Force (IETF). RFCs are the official standards documents for internet protocols and are freely available for public review.

Related Protocols — Application Layer

HTTP Hypertext Transfer Protocol HTTPS HTTP Secure HTTP/2 HTTP/2 HTTP/3 HTTP/3 WS WebSocket SMTP Simple Mail Transfer Protocol IMAP Internet Message Access Protocol POP3 Post Office Protocol v3
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