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News and Announcements

ICANN63 Fellowship Program Report

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Read the ICANN63 Fellows report on their experiences in Barcelona, highlighting that “everyone can have their voice heard and can participate in the management and governance of the Internet.”

Chair's Blog: ICANN63 Meeting & Board Workshop

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Cherine Chalaby, Chair, ICANN Board of Directors, shares some thoughts on the Annual General Meeting (AGM) itself, and provides a summary of the key resolutions that the Board passed on the final day of the AGM.

Post-ICANN63 Policy Report Now Available

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The Post-ICANN63 Policy Report captures updates from the Supporting Organizations and Advisory Committees. The ICANN community develops and refines policies that ensure the security, stability, and resiliency of the global Internet. More than 200 sessions at ICANN63 were dedicated to community policy and advice development.

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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."