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TAS Interruption - Update (27 April 2012)

Statement by Akram Atallah, COO

ICANN will notify all applicants within the next seven business days whether our analysis shows they were affected by the technical glitch in the TLD application system.

In order to make these notifications, we are identifying each applicant file name and user name that might have been viewed, and who might have viewed them. To do that, we are reviewing internal system logs and full packet-level capture of all traffic to and from the application system from 12 January through 12 April.

Our analysis continues to show that a limited number of applicants were affected.

Shortly after the notification process has been completed, we will announce the schedule for reopening the application system and completing the application period. We are mindful of the need to allow sufficient time during the reopening period for applicants to confirm the completeness of their submissions.

We are also continuing to test the fix and enhance system performance in preparation for reopening.

We fully understand the frustration and inconvenience caused by the continuing suspension of the application system and will provide further updates as new information becomes available.


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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."