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RFC Index

Key RFCs organized by category. All links go directly to the authoritative source at rfc-editor.org.

Core Internet

RFCTitleYearProtocol
RFC 791Internet Protocol (IPv4)1981IP
RFC 768User Datagram Protocol1980UDP
RFC 9293Transmission Control Protocol2022TCP
RFC 792Internet Control Message Protocol1981ICMP
RFC 8200Internet Protocol Version 6 (IPv6)2017IPv6
RFC 9000QUIC: A UDP-Based Multiplexed Transport2021QUIC

Web (HTTP)

RFCTitleYearProtocol
RFC 9110HTTP Semantics2022HTTP
RFC 9111HTTP Caching2022HTTP
RFC 9112HTTP/1.12022HTTP
RFC 9113HTTP/22022HTTP
RFC 9114HTTP/32022HTTP
RFC 6585Additional HTTP Status Codes2012HTTP

Security

RFCTitleYearProtocol
RFC 8446The Transport Layer Security (TLS) Protocol Version 1.32018TLS
RFC 5246The TLS Protocol Version 1.22008TLS
RFC 4251The Secure Shell (SSH) Protocol Architecture2006SSH
RFC 6749The OAuth 2.0 Authorization Framework2012OAuth

DNS

RFCTitleYearProtocol
RFC 1035Domain Names – Implementation and Specification1987DNS
RFC 4033DNS Security Introduction and Requirements2005DNS
RFC 8484DNS Queries over HTTPS (DoH)2018DNS
RFC 7858Specification for DNS over TLS2016DNS

Network Management

RFCTitleYearProtocol
RFC 2131Dynamic Host Configuration Protocol1997DHCP
RFC 5905Network Time Protocol Version 42010NTP
RFC 3411An Architecture for SNMP Frameworks2002SNMP
RFC 4271A Border Gateway Protocol 4 (BGP-4)2006BGP