Skip to main content

ICANN64 Fellowship Application Round Now Open

The application round for applicants interested in participating in the ICANN64 Public Meeting through the Fellowship Program is now open.

Apply now

News and Announcements

Update on ICANN's Strategic Planning Process

Thumb update on icann s strategic planning process 01 icannorg 492x279

The community, Board, and the ICANN org have completed the process of identifying strategic outlook trends. The ICANN org has consolidated the results of the trend identification work and findings will be shared with the community in September via webinars.

ICANN 2018 Nominating Committee Announces Selections

Thumb icann nomcom

The ICANN 2018 Nominating Committee is pleased to announce its selections for eight leadership positions within ICANN. The Nominating Committee is charged with recruiting and selecting a portion of ICANN’s leadership and is mandated to ensure that ICANN’s overall leadership is diverse in geography, culture, skills, experience, and perspective.

View all
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."