| 1035 | Domain names - implementation and specificationP. Mockapetris | Internet Standard | November 1987 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2181 | Clarifications to the DNS SpecificationR. Elz, R. Bush | Proposed Standard | July 1997 |
| 3597 | Handling of Unknown DNS Resource Record (RR) TypesA. Gustafsson | Proposed Standard | September 2003 |
| 4033 | DNS Security Introduction and RequirementsR. Arends, R. Austein, M. Larson, D. Massey, S. Rose | Proposed Standard | March 2005 |
| 4034 | Resource Records for the DNS Security ExtensionsR. Arends, R. Austein, M. Larson, D. Massey, S. Rose | Proposed Standard | March 2005 |
| 4035 | Protocol Modifications for the DNS Security ExtensionsR. Arends, R. Austein, M. Larson, D. Massey, S. Rose | Proposed Standard | March 2005 |
| 4255 | Using DNS to Securely Publish Secure Shell (SSH) Key FingerprintsJ. Schlyter, W. Griffin | Proposed Standard | January 2006 |
| 4398 | Storing Certificates in the Domain Name System (DNS)S. Josefsson | Proposed Standard | March 2006 |
| 4648 | The Base16, Base32, and Base64 Data EncodingsS. Josefsson | Proposed Standard | October 2006 |
| 4880 | OpenPGP Message FormatJ. Callas, L. Donnerhacke, H. Finney, D. Shaw, R. Thayer · obsoleted by RFC 9580 | Proposed Standard | November 2007 |
| 5321 | Simple Mail Transfer ProtocolJ. Klensin | Draft Standard | October 2008 |
| 5322 | Internet Message FormatP. Resnick, Ed. | Draft Standard | October 2008 |
| 5754 | Using SHA2 Algorithms with Cryptographic Message SyntaxS. Turner | Proposed Standard | January 2010 |
| 6530 | Overview and Framework for Internationalized EmailJ. Klensin, Y. Ko | Proposed Standard | February 2012 |
| 6672 | DNAME Redirection in the DNSS. Rose, W. Wijngaards | Proposed Standard | June 2012 |
| 6698 | The DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS) Protocol: TLSAP. Hoffman, J. Schlyter | Proposed Standard | August 2012 |
| 7258 | Pervasive Monitoring Is an AttackS. Farrell, H. Tschofenig | Best Current Practice | May 2014 |
| 7816 | DNS Query Name Minimisation to Improve PrivacyS. Bortzmeyer · obsoleted by RFC 9156 | Experimental | March 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 |
| 7873 | Domain Name System (DNS) CookiesD. Eastlake 3rd, M. Andrews | Proposed Standard | May 2016 |