RFC 3491: Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN)

This document describes how to prepare internationalized domain name (IDN) labels in order to increase the likelihood that name input and name comparison work…

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Outgoing relationships (3 related RFCs)

Normative reference — RFC 2119: Key words for use in RFCs to Indicate Requirement Levels
Normative reference — RFC 3490: Internationalizing Domain Names in Applications (IDNA)
Normative reference — RFC 3454: Preparation of Internationalized Strings ("stringprep")

Incoming relationships (23 related RFCs)

Obsoleted by, Informatively referenced by — RFC 5891: Internationalized Domain Names in Applications (IDNA): Protocol
Normatively referenced by — RFC 3490: Internationalizing Domain Names in Applications (IDNA)
Normatively referenced by — RFC 5661: Network File System (NFS) Version 4 Minor Version 1 Protocol
Normatively referenced by — RFC 4690: Review and Recommendations for Internationalized Domain Names (IDNs)
Normatively referenced by — RFC 6122: Extensible Messaging and Presence Protocol (XMPP): Address Format
Normatively referenced by — RFC 8881: Network File System (NFS) Version 4 Minor Version 1 Protocol
Normatively referenced by — RFC 3696: Application Techniques for Checking and Transformation of Names
Normatively referenced by — RFC 4713: Registration and Administration Recommendations for Chinese Domain Names
Normatively referenced by — RFC 5483: ENUM Implementation Issues and Experiences
Normatively referenced by — RFC 5564: Linguistic Guidelines for the Use of the Arabic Language in Internet Domains
Normatively referenced by — RFC 9233: Internationalized Domain Names for Applications 2008 (IDNA2008) and Unicode 12.0.0
Informatively referenced by — RFC 5890: Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework
Informatively referenced by — RFC 4279: Pre-Shared Key Ciphersuites for Transport Layer Security (TLS)
Informatively referenced by — RFC 5894: Internationalized Domain Names for Applications (IDNA): Background, Explanation, and Rationale
Informatively referenced by — RFC 5892: The Unicode Code Points and Internationalized Domain Names for Applications (IDNA)
Informatively referenced by — RFC 6365: Terminology Used in Internationalization in the IETF
Informatively referenced by — RFC 4343: Domain Name System (DNS) Case Insensitivity Clarification
Informatively referenced by — RFC 7564: PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols
Informatively referenced by — RFC 4290: Suggested Practices for Registration of Internationalized Domain Names (IDN)
Informatively referenced by — RFC 6885: Stringprep Revision and Problem Statement for the Preparation and Comparison of Internationalized Strings (PRECIS)
Informatively referenced by — RFC 8264: PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols
Informatively referenced by — RFC 7790: Mapping Characters for Classes of the Preparation, Enforcement, and Comparison of Internationalized Strings (PRECIS)
Informatively referenced by — RFC 8753: Internationalized Domain Names for Applications (IDNA) Review for New Unicode Versions