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Announcements

Successful Candidates Selected for NextGen@ICANN58

Today, ICANN announced the names of fifteen individuals selected to participate at ICANN58 in Copenhagen, Denmark. The candidates, who come from various universities in Europe, are actively engaged in studies involving policy, international...

At-Large Community Announces Candidates for ICANN Board of Directors

Today, ICANN Staff announced, on behalf of the Board Candidate Evaluation Committee (BCEC) and in the spirit of increased transparency, the names and domiciles of all Candidates for the ICANN Board Director position selected by the At-Large...

Identifier Technology Health Indicators: Definition

Open Date: 29 November 2016 Close Date: 9 January 2017 Originating Organization: Office of the CTO Categories/Tags: Security/Stability Brief Overview: ICANN would like to solicit feedback from...

Updated Supplementary Procedures for Independent Review Process (IRP)

Open Date: 28 November 2016 Close Date: 10 January 2017 Originating Organization: Cross-Community Working Group on Enhancing ICANN Accountability...

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2016 Leadership Award Winners on the Most Difficult Part of IANA Stewardship Transition

Some of the 2016 Leadership Award winners discuss what they considered to be the most difficult part of the IANA Stewardship Transition. To meet the rest of this year's winners, please go to...

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2016 Leadership Award Winners on the Most Difficult Part of IANA Stewardship Transition

Some of the 2016 Leadership Award winners discuss what they considered to be the most difficult part of the IANA Stewardship Transition. To meet the rest of this year's winners, please go to...

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ICANN’s CTO David Conrad Talks About Changing The Master Key Of The DNS

ICANN’s Brad White speaks with David Conrad, ICANN's Chief Technology Officer, about the first root zone key signing key rollover at ICANN57.

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Watch The Wrap - Up Interview With Stephen Crocker And Göran Marby At ICANN57

ICANN's Liana Teo speaks with Board Chair Stephen Crocker and President and CEO Göran Marby about ICANN57.

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Blog Posts

ICANN to Participate in Upcoming Internet Governance Forum in Mexico

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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."