RFC 5894: Internationalized Domain Names for Applications (IDNA): Background, Explanation, and Rationale

Several years have passed since the original protocol for Internationalized Domain Names (IDNs) was completed and deployed. During that time, a number of…

Read RFC 5894 on the RFC Editor

Outgoing relationships (23 related RFCs)

Normative reference — RFC 5890: Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework
Normative reference — RFC 3490: Internationalizing Domain Names in Applications (IDNA)
Normative reference — RFC 5891: Internationalized Domain Names in Applications (IDNA): Protocol
Normative reference — RFC 3492: Punycode: A Bootstring encoding of Unicode for Internationalized Domain Names in Applications (IDNA)
Normative reference — RFC 5892: The Unicode Code Points and Internationalized Domain Names for Applications (IDNA)
Normative reference — RFC 5893: Right-to-Left Scripts for Internationalized Domain Names for Applications (IDNA)
Informative reference — RFC 1035: Domain names - implementation and specification
Informative reference — RFC 1034: Domain names - concepts and facilities
Informative reference — RFC 2782: A DNS RR for specifying the location of services (DNS SRV)
Informative reference — RFC 1123: Requirements for Internet Hosts - Application and Support
Informative reference — RFC 2136: Dynamic Updates in the Domain Name System (DNS UPDATE)
Informative reference — RFC 2181: Clarifications to the DNS Specification
Informative reference — RFC 3454: Preparation of Internationalized Strings ("stringprep")
Informative reference — RFC 2277: IETF Policy on Character Sets and Languages
Informative reference — RFC 3987: Internationalized Resource Identifiers (IRIs)
Informative reference — RFC 952: DoD Internet host table specification
Informative reference — RFC 2671: Extension Mechanisms for DNS (EDNS0)
Informative reference — RFC 3491: Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN)
Informative reference — RFC 4690: Review and Recommendations for Internationalized Domain Names (IDNs)
Informative reference — RFC 4343: Domain Name System (DNS) Case Insensitivity Clarification
Informative reference — RFC 3743: Joint Engineering Team (JET) Guidelines for Internationalized Domain Names (IDN) Registration and Administration for Chinese, Japanese, and Korean
Informative reference — RFC 4290: Suggested Practices for Registration of Internationalized Domain Names (IDN)
Informative reference — RFC 4713: Registration and Administration Recommendations for Chinese Domain Names

Incoming relationships (20 related RFCs)

Normatively referenced by — RFC 8771: The Internationalized Deliberately Unreadable Network NOtation (I-DUNNO)
Normatively referenced by — RFC 9676: LEX: A Uniform Resource Name (URN) Namespace for Sources of Law
Informatively referenced by — RFC 5890: Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework
Informatively referenced by — RFC 5891: Internationalized Domain Names in Applications (IDNA): Protocol
Informatively referenced by — RFC 9499: DNS Terminology
Informatively referenced by — RFC 5892: The Unicode Code Points and Internationalized Domain Names for Applications (IDNA)
Informatively referenced by — RFC 6530: Overview and Framework for Internationalized Email
Informatively referenced by — RFC 6797: HTTP Strict Transport Security (HSTS)
Informatively referenced by — RFC 7613: Preparation, Enforcement, and Comparison of Internationalized Strings Representing Usernames and Passwords
Informatively referenced by — RFC 7719: DNS Terminology
Informatively referenced by — RFC 7564: PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols
Informatively referenced by — RFC 6122: Extensible Messaging and Presence Protocol (XMPP): Address Format
Informatively referenced by — RFC 6885: Stringprep Revision and Problem Statement for the Preparation and Comparison of Internationalized Strings (PRECIS)
Informatively referenced by — RFC 8170: Planning for Protocol Adoption and Subsequent Transitions
Informatively referenced by — RFC 8264: PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols
Informatively referenced by — RFC 6912: Principles for Unicode Code Point Inclusion in Labels in the DNS
Informatively referenced by — RFC 8753: Internationalized Domain Names for Applications (IDNA) Review for New Unicode Versions
Informatively referenced by — RFC 9549: Internationalization Updates to RFC 5280
Informatively referenced by — RFC 8222: Selecting Labels for Use with Conventional DNS and Other Resolution Systems in DNS-Based Service Discovery
Informatively referenced by — RFC 9233: Internationalized Domain Names for Applications 2008 (IDNA2008) and Unicode 12.0.0