Skip to main content

Registry Communications


Email communications and blogs from the Global Domains Division (GDD) to the ICANN organization’s registry operators for the current year can be found below.*

Please note: Legal notices and weekly registrar announcements are not included in the list below.




Data Protection/Privacy Update: Latest Developments


Data Protection/Privacy Update: Status of Model Selection and Webinar


Data Protection and Privacy Update: Seeking Community Feedback on Proposed Models





Contracted Parties Briefing [PDF, 464 KB]


Notification - Upcoming MoSAPI Maintenance [PDF, 438 KB]


Notification - Upcoming SLA Monitoring System API [PDF, 454 KB]


Model Selection Delay Blog & Webinar Announcement Published/Webpage Updated [PDF, 662 KB]


Notification-Upcoming SLA Monitoring System Probe Node IP Address Changes [PDF, 452 KB]


CSC on PTI Performance Report   December 2017 [PDF, 431 KB]


SLA Monitoring System API Pilot [PDF, 333 KB]


Reminder: Annual Certifications Due to the ICANN org by 20 January 2018 [PDF, 158 KB]

* This page will be updated bi-weekly.

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."