| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2131 | Dynamic Host Configuration ProtocolR. Droms | Draft Standard | March 1997 |
| 2132 | DHCP Options and BOOTP Vendor ExtensionsS. Alexander, R. Droms | Draft Standard | March 1997 |
| 3315 | Dynamic Host Configuration Protocol for IPv6 (DHCPv6)R. Droms, Ed., J. Bound, B. Volz, T. Lemon, C. Perkins, M. Carney · obsoleted by RFC 8415 | Proposed Standard | July 2003 |
| 3646 | DNS Configuration options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6)R. Droms, Ed. | Proposed Standard | December 2003 |
| 5077 | Transport Layer Security (TLS) Session Resumption without Server-Side StateJ. Salowey, H. Zhou, P. Eronen, H. Tschofenig · obsoleted by RFC 8446, RFC 9846 | Proposed 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 |
| 5280 | Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) ProfileD. Cooper, S. Santesson, S. Farrell, S. Boeyen, R. Housley, W. Polk | Proposed Standard | May 2008 |
| 6125 | Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS)P. Saint-Andre, J. Hodges · obsoleted by RFC 9525 | Proposed Standard | March 2011 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 6698 | The DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS) Protocol: TLSAP. Hoffman, J. Schlyter | Proposed Standard | August 2012 |
| 7227 | Guidelines for Creating New DHCPv6 OptionsD. Hankins, T. Mrugalski, M. Siodelski, S. Jiang, S. Krishnan | Best Current Practice | May 2014 |
| 7250 | Using Raw Public Keys in Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)P. Wouters, Ed., H. Tschofenig, Ed., J. Gilmore, S. Weiler, T. Kivinen | Proposed Standard | June 2014 |
| 7435 | Opportunistic Security: Some Protection Most of the TimeV. Dukhovni | Informational | December 2014 |
| 7469 | Public Key Pinning Extension for HTTPC. Evans, C. Palmer, R. Sleevi | Proposed Standard | April 2015 |
| 7525 | Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)Y. Sheffer, R. Holz, P. Saint-Andre · obsoleted by RFC 9325 | Best Current Practice | May 2015 |
| 7626 | DNS Privacy ConsiderationsS. Bortzmeyer · obsoleted by RFC 9076 | Informational | August 2015 |
| 7671 | The DNS-Based Authentication of Named Entities (DANE) Protocol: Updates and Operational GuidanceV. Dukhovni, W. Hardaker | Proposed Standard | October 2015 |
| 7830 | The EDNS(0) Padding OptionA. Mayrhofer | Proposed Standard | May 2016 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 7858 | Specification for DNS over Transport Layer Security (TLS)Z. Hu, L. Zhu, J. Heidemann, A. Mankin, D. Wessels, P. Hoffman | Proposed Standard | May 2016 |
| 7871 | Client Subnet in DNS QueriesC. Contavalli, W. van der Gaast, D. Lawrence, W. Kumari | Informational | May 2016 |
| 7918 | Transport Layer Security (TLS) False StartA. Langley, N. Modadugu, B. Moeller | Informational | August 2016 |
| 7924 | Transport Layer Security (TLS) Cached Information ExtensionS. Santesson, H. Tschofenig | Proposed Standard | July 2016 |
| 8094 | DNS over Datagram Transport Layer Security (DTLS)T. Reddy, D. Wing, P. Patil | Experimental | February 2017 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |