Internationalized Domain Names Registration and Administration Guidelines for European Languages Using Cyrillic (RFC5992)
Original Publication Date: 2010-Oct-01
Included in the Prior Art Database: 2010-Oct-05
Internet Society Requests For Comment (RFCs)
S. Sharikov: AUTHOR [+3]
Cyrillic is one of a fairly small number of scripts that are used, with different subsets of characters, to write a large number of languages, some of which are not closely related to the others. When those languages might be used together in a zone (typical of generic TLDs (gTLDs) but likely in other zones both at and below the root), special considerations for intermixing characters may apply. Cyrillic also has the property that, while it is usually considered a separate script from the Latin (Roman) and Greek ones, it shares many characters with them, creating opportunities for visual confusion. Those difficulties are especially pronounced when "all of Cyrillic" is used rather than only the characters associated with a particular language.
Independent Submission S. Sharikov Request for Comments: 5992 Regtime Ltd Category: Informational D. Miloshevic ISSN: 2070-1721 Afilias J. Klensin October 2010
Internationalized Domain Names Registration and Administration Guidelines for European Languages Using Cyrillic
This document is a guideline for registries and registrars on registering internationalized domain names (IDNs) based on (in alphabetical order) Bosnian, Bulgarian, Byelorussian, Kildin Sami, Macedonian, Montenegrin, Russian, Serbian, and Ukrainian languages in a DNS zone. It describes appropriate characters for registration and variant considerations for characters from Greek and Latin scripts with similar appearances and/or derivations.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for informational purposes.
This is a contribution to the RFC Series, independently of any other RFC stream. The RFC Editor has chosen to publish this document at its discretion and makes no statement about its value for implementation or deployment. Documents approved for publication by the RFC Editor are not a candidate for any level of Internet Standard; see 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/rfc5992.
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al. Informational [Page 1]
RFC 5992 Cyrillic IDNs October 2010
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Similar Characters and Variants . . . . . . . . . . . . . 3
1.2. Terminology . . . . . . . . ....