| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 3205 | On the use of HTTP as a SubstrateK. Moore · obsoleted by RFC 9205 | Best Current Practice | February 2002 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 4791 | Calendaring Extensions to WebDAV (CalDAV)C. Daboo, B. Desruisseaux, L. Dusseault | Proposed Standard | March 2007 |
| 4918 | HTTP Extensions for Web Distributed Authoring and Versioning (WebDAV)L. Dusseault, Ed. | Proposed Standard | June 2007 |
| 5861 | HTTP Cache-Control Extensions for Stale ContentM. Nottingham | Informational | May 2010 |
| 6265 | HTTP State Management MechanismA. Barth | Proposed Standard | April 2011 |
| 6415 | Web Host MetadataE. Hammer-Lahav, Ed., B. Cook | Proposed Standard | October 2011 |
| 6454 | The Web Origin ConceptA. Barth | Proposed Standard | December 2011 |
| 6570 | URI TemplateJ. Gregorio, R. Fielding, M. Hadley, M. Nottingham, D. Orchard | Proposed Standard | March 2012 |
| 6648 | Deprecating the "X-" Prefix and Similar Constructs in Application ProtocolsP. Saint-Andre, D. Crocker, M. Nottingham | Best Current Practice | June 2012 |
| 6797 | HTTP Strict Transport Security (HSTS)J. Hodges, C. Jackson, A. Barth | Proposed Standard | November 2012 |
| 6838 | Media Type Specifications and Registration ProceduresN. Freed, J. Klensin, T. Hansen | Best Current Practice | January 2013 |
| 7258 | Pervasive Monitoring Is an AttackS. Farrell, H. Tschofenig | Best Current Practice | May 2014 |
| 7301 | Transport Layer Security (TLS) Application-Layer Protocol Negotiation ExtensionS. Friedl, A. Popov, A. Langley, E. Stephan | Proposed Standard | July 2014 |
| 7595 | Guidelines and Registration Procedures for URI SchemesD. Thaler, Ed., T. Hansen, T. Hardie | Best Current Practice | June 2015 |
| 7605 | Recommendations on Using Assigned Transport Port NumbersJ. Touch | Best Current Practice | August 2015 |
| 7616 | HTTP Digest Access AuthenticationR. Shekh-Yusef, Ed., D. Ahrens, S. Bremer | Proposed Standard | September 2015 |
| 7617 | The 'Basic' HTTP Authentication SchemeJ. Reschke | Proposed Standard | September 2015 |
| 7807 | Problem Details for HTTP APIsM. Nottingham, E. Wilde · obsoleted by RFC 9457 | Proposed Standard | March 2016 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |
| 8259 | The JavaScript Object Notation (JSON) Data Interchange FormatT. Bray, Ed. | Internet Standard | December 2017 |
| 8288 | Web LinkingM. Nottingham | Proposed Standard | October 2017 |
| 8297 | An HTTP Status Code for Indicating HintsK. Oku | Proposed Standard | December 2017 |
| 8446 | The Transport Layer Security (TLS) Protocol Version 1.3E. Rescorla · obsoleted by RFC 9846 | Proposed Standard | August 2018 |
| 8470 | Using Early Data in HTTPM. Thomson, M. Nottingham, W. Tarreau | Proposed Standard | September 2018 |
| 8615 | Well-Known Uniform Resource Identifiers (URIs)M. Nottingham | Proposed Standard | May 2019 |
| 8820 | URI Design and OwnershipM. Nottingham | Best Current Practice | June 2020 |
| 8941 | Structured Field Values for HTTPM. Nottingham, P-H. Kamp · obsoleted by RFC 9651 | Proposed Standard | February 2021 |
| 8949 | Concise Binary Object Representation (CBOR)C. Bormann, P. Hoffman | Internet Standard | December 2020 |
| 9110 | HTTP SemanticsR. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9111 | HTTP CachingR. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9112 | HTTP/1.1R. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9113 | HTTP/2M. Thomson, Ed., C. Benfield, Ed. | Proposed Standard | June 2022 |
| 9114 | HTTP/3M. Bishop, Ed. | Proposed Standard | June 2022 |
| 9218 | Extensible Prioritization Scheme for HTTPK. Oku, L. Pardue | Proposed Standard | June 2022 |