| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2616 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L. Masinter, P. Leach, T. Berners-Lee · obsoleted by RFC 7230, RFC 7231, RFC 7232, RFC 7233, RFC 7234, RFC 7235 | Draft Standard | June 1999 |
| 2663 | IP Network Address Translator (NAT) Terminology and ConsiderationsP. Srisuresh, M. Holdrege | Informational | August 1999 |
| 3040 | Internet Web Replication and Caching TaxonomyI. Cooper, I. Melve, G. Tomlinson | Informational | January 2001 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 4279 | Pre-Shared Key Ciphersuites for Transport Layer Security (TLS)P. Eronen, Ed., H. Tschofenig, Ed. | Proposed Standard | December 2005 |
| 4732 | Internet Denial-of-Service ConsiderationsM. Handley, Ed., E. Rescorla, Ed., IAB | Informational | December 2006 |
| 5234 | Augmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. Overell | Internet Standard | January 2008 |
| 5246 | The Transport Layer Security (TLS) Protocol Version 1.2T. Dierks, E. Rescorla · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | August 2008 |
| 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 |
| 6690 | Constrained RESTful Environments (CoRE) Link FormatZ. Shelby | Proposed Standard | August 2012 |
| 7049 | Concise Binary Object Representation (CBOR)C. Bormann, P. Hoffman · obsoleted by RFC 8949 | Proposed Standard | October 2013 |
| 7228 | Terminology for Constrained-Node NetworksC. Bormann, M. Ersue, A. Keranen | Informational | May 2014 |
| 7230 | Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and RoutingR. Fielding, Ed., J. Reschke, Ed. · obsoleted by RFC 9110, RFC 9112 | Proposed Standard | June 2014 |
| 7231 | Hypertext Transfer Protocol (HTTP/1.1): Semantics and ContentR. Fielding, Ed., J. Reschke, Ed. · obsoleted by RFC 9110 | Proposed Standard | June 2014 |
| 7232 | Hypertext Transfer Protocol (HTTP/1.1): Conditional RequestsR. Fielding, Ed., J. Reschke, Ed. · obsoleted by RFC 9110 | Proposed Standard | June 2014 |
| 7235 | Hypertext Transfer Protocol (HTTP/1.1): AuthenticationR. Fielding, Ed., J. Reschke, Ed. · obsoleted by RFC 9110 | Proposed Standard | June 2014 |
| 7252 | The Constrained Application Protocol (CoAP)Z. Shelby, K. Hartke, C. Bormann | Proposed Standard | June 2014 |
| 7390 | Group Communication for the Constrained Application Protocol (CoAP)A. Rahman, Ed., E. Dijk, Ed. | Experimental | October 2014 |
| 7641 | Observing Resources in the Constrained Application Protocol (CoAP)K. Hartke | Proposed Standard | September 2015 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 7925 | Transport Layer Security (TLS) / Datagram Transport Layer Security (DTLS) Profiles for the Internet of ThingsH. Tschofenig, Ed., T. Fossati | Proposed Standard | July 2016 |
| 7959 | Block-Wise Transfers in the Constrained Application Protocol (CoAP)C. Bormann, Z. Shelby, Ed. | Proposed Standard | August 2016 |