Suggested Practices for Registration of Internationalized Domain Names
RFC 4290, “Suggested Practices for Registration of Internationalized Domain Names”, is an Informational document published in December 2005 by J. Klensin. The canonical text is published by the RFC Editor.
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 memo provides information for the Internet community.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 4290 is hosted at rfc-editor.org. Available in TXT,HTML.
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