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Suggested Practices for Registration of Internationalized Domain Names (IDN) (RFC4290)

IP.com Disclosure Number: IPCOM000132587D
Original Publication Date: 2005-Dec-01
Included in the Prior Art Database: 2005-Dec-23
Document File: 29 page(s) / 71K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Klensin: AUTHOR

Abstract

This document explores the issues in the registration of internationalized domain names (IDNs). The basic IDN definition allows a very large number of possible characters in domain names, and this richness may lead to serious user confusion about similar- looking names. To avoid this confusion, the IDN registration process must impose rules that disallow some otherwise-valid name combinations. This document suggests a set of mechanisms that registries might use to define and implement such rules for a broad range of languages, including adaptation of methods developed for Chinese, Japanese, and Korean domain names.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 4% of the total text.

Network Working Group                                         J. Klensin
Request for Comments: 4290                                 December 2005
Category: Informational


                Suggested Practices for Registration of
                  Internationalized Domain Names (IDN)

Status of This Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

IESG Note

   This RFC is not a candidate for any level of Internet Standard.  The
   IETF disclaims any knowledge of the fitness of this RFC for any
   purpose and notes that the decision to publish is not based on IETF
   review apart from IESG review for conflict with IETF work.  The RFC
   Editor has chosen to publish this document at its discretion.  See
   RFC 3932 for more information.

Abstract

   This document explores the issues in the registration of
   internationalized domain names (IDNs).  The basic IDN definition
   allows a very large number of possible characters in domain names,
   and this richness may lead to serious user confusion about similar-
   looking names.  To avoid this confusion, the IDN registration process
   must impose rules that disallow some otherwise-valid name
   combinations.  This document suggests a set of mechanisms that
   registries might use to define and implement such rules for a broad
   range of languages, including adaptation of methods developed for
   Chinese, Japanese, and Korean domain names.


Klensin                      Informational                      [Page 1]
RFC 4290               IDN Registration Practices          December 2005


Table of Contents

   1. Introduction ....................................................3
      1.1. Background .................................................3
      1.2. The Nature and Status of these Recommendations .............4
      1.3. Terminology ................................................5
         1.3.1. Languages and Scripts .................................5
         1.3.2. Characters, Variants, Registrations, and Other
                Issues ................................................6
         1.3.3. Confusion, Fraud, and Cybersquatting ..................9
      1.4. A Review of the JET Guidelines .............................9
         1.4.1. JET Model .............................................9
         1.4.2. Reserved Names and Label Packages ....................10
      1.5. Languages, Scripts, and Variants ..........................11
         1.5.1. Languages versus Scripts .............................1...