Internationalized Domain Names in Applications (IDNA): Protocol (RFC5891)
Original Publication Date: 2010-Aug-01
Included in the Prior Art Database: 2010-Aug-05
Internet Society Requests For Comment (RFCs)
This document supplies the protocol definition for Internationalized Domain Names in Applications (IDNA), with the version specified here known as IDNA2008. Essential definitions and terminology for understanding this document and a road map of the collection of documents that make up IDNA2008 appear in a separate Definitions document [RFC5890]. Appendix A discusses the relationship between this specification and the earlier version of IDNA (referred to here as "IDNA2003"). The rationale for these changes, along with considerable explanatory material and advice to zone administrators who support IDNs, is provided in another document, known informally in this series as the "Rationale document" [RFC5894].
Internet Engineering Task Force (IETF) J. Klensin Request for Comments: 5891 August 2010 Obsoletes: 3490, 3491 Updates: 3492 Category: Standards Track ISSN: 2070-1721
Internationalized Domain Names in Applications (IDNA): Protocol
This document is the revised protocol definition for Internationalized Domain Names (IDNs). The rationale for changes, the relationship to the older specification, and important terminology are provided in other documents. This document specifies the protocol mechanism, called Internationalized Domain Names in Applications (IDNA), for registering and looking up IDNs in a way that does not require changes to the DNS itself. IDNA is only meant for processing domain names, not free text.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc5891.
Klensin Standards Track [Page 1]
RFC 5891 IDNA2008 Protocol August 2010
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