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Proposed Measures for Letter/Letter Two-Character ASCII Labels to Avoid Confusion with Corresponding Country Codes

Open Date: 8 July 2016 Close Date: 17 August 2016
Originating Organization: Global Domains Division
Categories/Tags:
  • Top-Level Domains
  • Second-Level Domains
  • Contracted Party Agreements
  • Security/Stability
Brief Overview:

As per Section 2 of Specification 5 of the New gTLD Registry Agreement, "All two-character ASCII labels shall be withheld from registration or allocated to Registry Operator at the second level within the TLD. Such labels may not be activated in the DNS, and may not be released for registration to any person or entity other than Registry Operator, provided that such two-character label strings may be released to the extent that Registry Operator reaches agreement with the related government and country-code manager of the string as specified in the ISO 3166-1 alpha-2 standard. The Registry Operator may also propose the release of these reservations based on its implementation of measures to avoid confusion with the corresponding country codes, subject to approval by ICANN."

This public comment is to gather community feedback in order to establish the list of measures a registry must implement in order to release from reservation at the second-level of the domain name system letter/letter two-character ASCII labels not otherwise reserved pursuant to Specification 5 Section 6 of the Registry Agreement. If adopted, all currently reserved two-letter second-level domains would be released for all gTLD registries who implement the measures.

Link: https://www.icann.org/public-comments/proposed-measures-two-char-2016-07-08-en

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Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as""icann.org"" is not an IDN."