Variants in Second-Level Names Registered in Top-Level Domains
RFC 6927
Document | Type |
RFC - Informational
(May 2013; No errata)
Was draft-levine-tld-variant (individual)
|
|
---|---|---|---|
Authors | John Levine , Paul Hoffman | ||
Last updated | 2020-04-02 | ||
Stream | ISE | ||
Formats | plain text html pdf htmlized bibtex | ||
IETF conflict review | conflict-review-levine-tld-variant | ||
Stream | ISE state | Published RFC | |
Consensus Boilerplate | Unknown | ||
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6927 (Informational) | |
Telechat date | |||
Responsible AD | (None) | ||
Send notices to | rfc-ise@rfc-editor.org |
Independent Submission J. Levine Request for Comments: 6927 Taughannock Networks Category: Informational P. Hoffman ISSN: 2070-1721 VPN Consortium May 2013 Variants in Second-Level Names Registered in Top-Level Domains Abstract Internationalized Domain Names for Applications (IDNA) provides a method to map a subset of names written in Unicode into the DNS. Because of Unicode decisions, appearance, language and writing system conventions, and historical reasons, it often has been asserted that there is more than one way to write what competent readers and writers think of as the same host name; these different ways of writing are often called "variants". (The authors note that there are many conflicting definitions for the term "variant" in the IDNA community.) This document surveys the approaches that top-level domains have taken to the registration and provisioning of domain names that have variants. This document is not a product of the IETF, does not propose any method to make variants work "correctly", and is not an introduction to internationalization or IDNA. 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/rfc6927. Levine & Hoffman Informational [Page 1] RFC 6927 Variants in Second-Level Domain Names May 2013 Copyright Notice Copyright (c) 2013 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Table of Contents 1. Introduction ....................................................3 2. Terminology .....................................................4 3. Base Documents ..................................................5 4. Domain Practices of gTLDs .......................................6 4.1. AERO .......................................................6 4.2. ASIA .......................................................6 4.3. BIZ ........................................................6 4.4. CAT ........................................................6 4.5. COM ........................................................7 4.6. COOP .......................................................7 4.7. INFO .......................................................7 4.8. JOBS .......................................................7 4.9. MOBI .......................................................7 4.10. MUSEUM ....................................................8 4.11. NAME ......................................................8 4.12. NET .......................................................8 4.13. ORG .......................................................8 4.14. POST ......................................................9 4.15. PRO .......................................................9 4.16. TEL .......................................................9 4.17. TRAVEL ...................................................10 4.18. XXX ......................................................10 5. Domain Practices of ccTLDs .....................................10 5.1. BG ........................................................10 5.2. BR ........................................................10 5.3. CL ........................................................10 5.4. CN ........................................................10 5.5. ES ........................................................11 5.6. EU ........................................................11 5.7. GR ........................................................11 5.8. IL ........................................................11 5.9. IR ........................................................11Show full document text