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Mexico City Briefing Note Published

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A briefing note on the Mexico City meeting of 1-6 March 2009 has been published.

ICANN's 34th international public meeting was hosted by ICANN, the Mexican Internet Association (AMIPCI), the Network Information Center (NIC) Mexico, and the Internet Society (ISOC) Mexico. Representatives of over 90 entities from ICANN's global individual Internet user community also gathered at the At-Large Summit which was an integral part of the meeting.

The briefing note summarizes key developments at the meeting and outlines next steps and sources of further information for each. The topics included are:

  • New generic Top Level Domains (gTLDs)
  • Internationalized Domain Names and the IDN Fast Track
  • At Large Summit
  • Amendments to the Registrar Accreditation Agreement (RAA)
  • The Improving Institutional Confidence (IIC) consultation
  • GNSO Improvements
  • Independent Reviews
  • A summary of Board resolutions

The briefing note is an informal summary. The authoritative records of official meetings will be available in their minutes.

Further information about the meeting, including presentations and transcripts, is available at

Information about the next meeting which will be from 21-26 June 2008 in Sydney, Australia can be found at its dedicated website at

Related links:

Mexico City briefing note:

Mexico City meeting website:

Sydney meeting website:

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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"""" is not an IDN."