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Announcements

Release of Country and Territory Names within the .HYUNDAI, .KIA and .GODADDY TLDs

Open Date: 27 April 2016 Close Date: 9 June 2016 Originating Organization: Global Domains Division Categories/Tags: Top-Level Domains Second-Level Domains Contracted Party...

IANA Functions, DNSSEC Audits: ICANN Systems Have Appropriate Controls

The Internet Corporation for Assigned Names and Numbers (ICANN) has completed annual, third-party audits of the IANA Registry Management Systems and DNSSEC services it provides. For the sixth consecutive year, ICANN has achieved Service...

Fellowship Application Round Opens for ICANN57

lCANN launches the application round for those interested in participating at the ICANN57 Meeting through the Fellowship Program. The Meeting will be held 29 October - 4 November 2016. This round remains open until 27 May 2016 and successful...

Draft New ICANN Bylaws

Open Date: 21 April 2016 Close Date: 21 May 2016 Originating Organization: ICANN Categories/Tags: IANA Stewardship Transition, Implementation, Bylaws Brief Overview: Now that the IANA Stewardship...

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Multimedia

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Interview with Jia-Rong Low on ICANN Day in China

Interview with Jia-Rong Low, VP and MD of ICANN APAC Hub, on the inaugural China ICANN Day, filmed in Beijing in March 2016.

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Interview with GAC Representative Tracy Hackshaw During ICANN53

Interview with GAC Representative Tracy Hackshaw from Trinidad and Tobago, filmed in June 2015 in Buenos Aires

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ICANN55 Wrap Up Interview With Atallah And Crocker

ICANN's Luna Madi sat down with interim ICANN President & CEO Akram Atallah and ICANN Board Chair Steve Crocker to talk about ICANN's historic week. They discussed the community's extraordinary...

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Interview With Katrina Sataki ccNSO Chair At ICANN55

Interview With Katrina Sataki ccNSO Chair At ICANN55

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Blog Posts

Hero1 iana implementation timeline v4

IANA Stewardship Transition Planning Update (Volume 1)

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My First 90 Days Leading the ICANN Asia Pacific Hub

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New gTLD Program Delegation Deadlines

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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."