| 9549 | Internationalization Updates to RFC 5280R. Housley | Proposed Standard | March 2024 |
| 9233 | Internationalized Domain Names for Applications 2008 (IDNA2008) and Unicode 12.0.0P. Fältström | Proposed Standard | March 2022 |
| 8753 | Internationalized Domain Names for Applications (IDNA) Review for New Unicode VersionsJ. Klensin, P. Fältström | Proposed Standard | April 2020 |
| 8399 | Internationalization Updates to RFC 5280R. Housley · obsoleted by RFC 9549 | Proposed Standard | May 2018 |
| 8324 | DNS Privacy, Authorization, Special Uses, Encoding, Characters, Matching, and Root Structure: Time for Another Look?J. Klensin | Informational | February 2018 |
| 8264 | PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application ProtocolsP. Saint-Andre, M. Blanchet | Proposed Standard | October 2017 |
| 7790 | Mapping Characters for Classes of the Preparation, Enforcement, and Comparison of Internationalized Strings (PRECIS)Y. Yoneya, T. Nemoto | Informational | February 2016 |
| 7622 | Extensible Messaging and Presence Protocol (XMPP): Address FormatP. Saint-Andre | Proposed Standard | September 2015 |
| 7564 | PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application ProtocolsP. Saint-Andre, M. Blanchet · obsoleted by RFC 8264 | Proposed Standard | May 2015 |
| 7530 | Network File System (NFS) Version 4 ProtocolT. Haynes, Ed., D. Noveck, Ed. | Proposed Standard | March 2015 |
| 6943 | Issues in Identifier Comparison for Security PurposesD. Thaler, Ed. | Informational | May 2013 |
| 6885 | Stringprep Revision and Problem Statement for the Preparation and Comparison of Internationalized Strings (PRECIS)M. Blanchet, A. Sullivan | Informational | March 2013 |
| 6818 | Updates to the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) ProfileP. Yee | Proposed Standard | January 2013 |
| 6797 | HTTP Strict Transport Security (HSTS)J. Hodges, C. Jackson, A. Barth | Proposed Standard | November 2012 |
| 6454 | The Web Origin ConceptA. Barth | Proposed Standard | December 2011 |
| 6365 | Terminology Used in Internationalization in the IETFP. Hoffman, J. Klensin | Best Current Practice | September 2011 |
| 6353 | Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP)W. Hardaker | Internet Standard | July 2011 |
| 6265 | HTTP State Management MechanismA. Barth | Proposed Standard | April 2011 |
| 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 |
| 6122 | Extensible Messaging and Presence Protocol (XMPP): Address FormatP. Saint-Andre · obsoleted by RFC 7622 | Proposed Standard | March 2011 |
| 6055 | IAB Thoughts on Encodings for Internationalized Domain NamesD. Thaler, J. Klensin, S. Cheshire | Informational | February 2011 |
| 5953 | Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP)W. Hardaker · obsoleted by RFC 6353 | Proposed Standard | August 2010 |
| 5936 | DNS Zone Transfer Protocol (AXFR)E. Lewis, A. Hoenes, Ed. | Proposed Standard | June 2010 |
| 5894 | Internationalized Domain Names for Applications (IDNA): Background, Explanation, and RationaleJ. Klensin | Informational | August 2010 |
| 5891 | Internationalized Domain Names in Applications (IDNA): ProtocolJ. Klensin | Proposed Standard | August 2010 |
| 5890 | Internationalized Domain Names for Applications (IDNA): Definitions and Document FrameworkJ. Klensin | Proposed Standard | August 2010 |
| 5804 | A Protocol for Remotely Managing Sieve ScriptsA. Melnikov, Ed., T. Martin | Proposed Standard | July 2010 |
| 5738 | IMAP Support for UTF-8P. Resnick, C. Newman · obsoleted by RFC 6855 | Experimental | March 2010 |
| 5732 | Extensible Provisioning Protocol (EPP) Host MappingS. Hollenbeck | Internet Standard | August 2009 |
| 5731 | Extensible Provisioning Protocol (EPP) Domain Name MappingS. Hollenbeck | Internet Standard | August 2009 |
| 5729 | Clarifications on the Routing of Diameter Requests Based on the Username and the RealmJ. Korhonen, Ed., M. Jones, L. Morand, T. Tsou | Proposed Standard | December 2009 |
| 5672 | RFC 4871 DomainKeys Identified Mail (DKIM) Signatures -- UpdateD. Crocker, Ed. · obsoleted by RFC 6376 | Proposed Standard | August 2009 |
| 5642 | Dynamic Hostname Exchange Mechanism for OSPFS. Venkata, S. Harwani, C. Pignataro, D. McPherson | Proposed Standard | August 2009 |
| 5592 | Secure Shell Transport Model for the Simple Network Management Protocol (SNMP)D. Harrington, J. Salowey, W. Hardaker | Proposed Standard | June 2009 |
| 5483 | ENUM Implementation Issues and ExperiencesL. Conroy, K. Fujiwara | Informational | March 2009 |
| 5353 | Endpoint Handlespace Redundancy Protocol (ENRP)Q. Xie, R. Stewart, M. Stillman, M. Tuexen, A. Silverton | Experimental | September 2008 |
| 5352 | Aggregate Server Access Protocol (ASAP)R. Stewart, Q. Xie, M. Stillman, M. Tuexen | Experimental | September 2008 |
| 5336 | SMTP Extension for Internationalized Email AddressesJ. Yao, Ed., W. Mao, Ed. · obsoleted by RFC 6531 | Experimental | September 2008 |
| 5301 | Dynamic Hostname Exchange Mechanism for IS-ISD. McPherson, N. Shen | Proposed Standard | October 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 |
| 5255 | Internet Message Access Protocol InternationalizationC. Newman, A. Gulbrandsen, A. Melnikov | Proposed Standard | June 2008 |
| 5242 | A Generalized Unified Character Code: Western European and CJK SectionsJ. Klensin, H. Alvestrand | Informational | 1 April 2008 |
| 5179 | Generic Security Service Application Program Interface (GSS-API) Domain-Based Service Names Mapping for the Kerberos V GSS MechanismN. Williams | Proposed Standard | May 2008 |
| 5178 | Generic Security Service Application Program Interface (GSS-API) Internationalization and Domain-Based Service Names and Name TypeN. Williams, A. Melnikov | Proposed Standard | May 2008 |
| 5122 | Internationalized Resource Identifiers (IRIs) and Uniform Resource Identifiers (URIs) for the Extensible Messaging and Presence Protocol (XMPP)P. Saint-Andre | Proposed Standard | February 2008 |
| 5101 | Specification of the IP Flow Information Export (IPFIX) Protocol for the Exchange of IP Traffic Flow InformationB. Claise, Ed. · obsoleted by RFC 7011 | Proposed Standard | January 2008 |
| 4985 | Internet X.509 Public Key Infrastructure Subject Alternative Name for Expression of Service NameS. Santesson | Proposed Standard | August 2007 |
| 4952 | Overview and Framework for Internationalized EmailJ. Klensin, Y. Ko · obsoleted by RFC 6530 | Informational | July 2007 |
| 4932 | Extensible Provisioning Protocol (EPP) Host MappingS. Hollenbeck · obsoleted by RFC 5732 | Draft Standard | May 2007 |
| 4931 | Extensible Provisioning Protocol (EPP) Domain Name MappingS. Hollenbeck · obsoleted by RFC 5731 | Draft Standard | May 2007 |
| 4871 | DomainKeys Identified Mail (DKIM) SignaturesE. Allman, J. Callas, M. Delany, M. Libbey, J. Fenton, M. Thomas · obsoleted by RFC 6376 | Proposed Standard | May 2007 |
| 4745 | Common Policy: A Document Format for Expressing Privacy PreferencesH. Schulzrinne, H. Tschofenig, J. Morris, J. Cuellar, J. Polk, J. Rosenberg | Proposed Standard | February 2007 |
| 4713 | Registration and Administration Recommendations for Chinese Domain NamesX. Lee, W. Mao, E. Chen, N. Hsu, J. Klensin | Informational | October 2006 |
| 4690 | Review and Recommendations for Internationalized Domain Names (IDNs)J. Klensin, P. Faltstrom, C. Karp, IAB | Informational | September 2006 |
| 4681 | TLS User Mapping ExtensionS. Santesson, A. Medvinsky, J. Ball | Proposed Standard | October 2006 |
| 4622 | Internationalized Resource Identifiers (IRIs) and Uniform Resource Identifiers (URIs) for the Extensible Messaging and Presence Protocol (XMPP)P. Saint-Andre · obsoleted by RFC 5122 | Proposed Standard | August 2006 |
| 4524 | COSINE LDAP/X.500 SchemaK. Zeilenga, Ed. | Proposed Standard | June 2006 |
| 4519 | Lightweight Directory Access Protocol (LDAP): Schema for User ApplicationsA. Sciberras, Ed. | Proposed Standard | June 2006 |
| 4513 | Lightweight Directory Access Protocol (LDAP): Authentication Methods and Security MechanismsR. Harrison, Ed. | Proposed Standard | June 2006 |
| 4501 | Domain Name System Uniform Resource IdentifiersS. Josefsson | Proposed Standard | May 2006 |
| 4366 | Transport Layer Security (TLS) ExtensionsS. Blake-Wilson, M. Nystrom, D. Hopwood, J. Mikkelsen, T. Wright · obsoleted by RFC 5246, RFC 6066 | Proposed Standard | April 2006 |
| 4356 | Mapping Between the Multimedia Messaging Service (MMS) and Internet MailR. Gellens | Proposed Standard | January 2006 |
| 4343 | Domain Name System (DNS) Case Insensitivity ClarificationD. Eastlake 3rd | Proposed Standard | January 2006 |
| 4290 | Suggested Practices for Registration of Internationalized Domain Names (IDN)J. Klensin | Informational | December 2005 |
| 4282 | The Network Access IdentifierB. Aboba, M. Beadles, J. Arkko, P. Eronen · obsoleted by RFC 7542 | Proposed Standard | December 2005 |
| 4185 | National and Local Characters for DNS Top Level Domain (TLD) NamesJ. Klensin | Informational | October 2005 |
| 4095 | Attaching Meaning to Solicitation Class KeywordsC. Malamud | Proposed Standard | May 2005 |
| 3987 | Internationalized Resource Identifiers (IRIs)M. Duerst, M. Suignard | Proposed Standard | January 2005 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 3982 | IRIS: A Domain Registry (dreg) Type for the Internet Registry Information Service (IRIS)A. Newton, M. Sanz | Proposed Standard | January 2005 |
| 3971 | SEcure Neighbor Discovery (SEND)J. Arkko, Ed., J. Kempf, B. Zill, P. Nikander | Proposed Standard | March 2005 |
| 3920 | Extensible Messaging and Presence Protocol (XMPP): CoreP. Saint-Andre, Ed. · obsoleted by RFC 6120 | Proposed Standard | October 2004 |
| 3797 | Publicly Verifiable Nominations Committee (NomCom) Random SelectionD. Eastlake 3rd | Informational | June 2004 |
| 3743 | Joint Engineering Team (JET) Guidelines for Internationalized Domain Names (IDN) Registration and Administration for Chinese, Japanese, and KoreanK. Konishi, K. Huang, H. Qian, Y. Ko | Informational | April 2004 |
| 3732 | Extensible Provisioning Protocol (EPP) Host MappingS. Hollenbeck · obsoleted by RFC 4932 | Proposed Standard | March 2004 |
| 3731 | Extensible Provisioning Protocol (EPP) Domain Name MappingS. Hollenbeck · obsoleted by RFC 4931 | Proposed Standard | March 2004 |
| 3696 | Application Techniques for Checking and Transformation of NamesJ. Klensin | Informational | February 2004 |
| 3546 | Transport Layer Security (TLS) ExtensionsS. Blake-Wilson, M. Nystrom, D. Hopwood, J. Mikkelsen, T. Wright · obsoleted by RFC 4366 | Proposed Standard | June 2003 |
| 3492 | Punycode: A Bootstring encoding of Unicode for Internationalized Domain Names in Applications (IDNA)A. Costello | Proposed Standard | March 2003 |
| 3491 | Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN)P. Hoffman, M. Blanchet · obsoleted by RFC 5891 | Proposed Standard | March 2003 |