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Webinar: Internationalized Domain Name (IDN) Variant TLD Program Update

Date: 27 June 2013
Time: 23:00 – 00:00 UTC (4:00pm – 5:00pm PDT)
Adobe Connect:
Mp3: IDN Variant TLD Program Updates – Public Webinar
Related Documents: IDN Variant TLD Program 27 June 2013 – Webinar Presentation [PDF, 991 KB]

You are invited to join the IDN Variant TLD Program webinar intended to provide a status update of the Program and current IDN Variant TLD Projects, as well as to address questions around the prerequisites for implementation of IDN Variant TLDs and upcoming community involvement.

Following a general overview of the IDN Variant TLD Program, the webinar will focus on describing Program's current projects and timeline, explaining why implementation of the IDN Root Label Generation Rules Procedure must be completed before the applied for IDN Variant TLDs can be considered and the role that writing system communities will play in this implementation phase.

The IDN Variant TLD Program team is looking forward to your participation.

Please join this webinar on Thursday, 27 June 2013 at 23:00 UTC (duration 1 hour). The meeting will be available through Adobe Connect and dial-in call. Participants will have the opportunity to offer comments and ask questions over the phone during the Q&A section. During the course of the webinar, these may be submitted using the chat function of Adobe Connect. If you cannot join the live session, the recording of the session will be made available shortly after the meeting at:

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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."