Skip to main content

Root Stability Study RFP

The Internet Corporation for Assigned Names and Numbers (“ICANN”) is seeking one or more providers to conduct a technical study examining the impact of the New gTLD Program (the Program) on the DNS root system.  Consistent with its mission supporting the security and stability of the Internet’s system of unique identifiers, ICANN will undertake an examination of the Program’s impact on the DNS root system. The selected provider(s) will design and execute one or more studies incorporating the collection and analysis of data from root server operators, historical performance data, data gathered from previous studies, and other tools and measures.  ICANN is seeking one or more qualified providers to manage this complex exercise in a timely and efficient manner.

A review of the Program for security and stability impact is a previous commitment based on advice from ICANN’s Governmental Advisory Committee  and other discussions. Specifically, ICANN committed to review the effects of the New gTLD Program on the operations of the DNS root system, and to postpone delegations in a future round until it is determined that the delegations in the 2012 round have not jeopardized the root system's security or stability.

The goals of this study include, at a minimum:

  • Executing a thorough review of the impact of the Program on the security and stability of the DNS.
  • Identifying what steps, if any, should be undertaken as a prerequisite to adding more TLDs to the root zone.
  • Identifying what steps, if any, should be undertaken by the community going forward to assess the state of the root zone on an ongoing basis.

For additional information, complete timeline, and instructions for submitting responses please click. [ZIP, 983 KB]

Proposals should be submitted to RootStabilityStudy-RFP@icann.org by 23:59 UTC ON 2 July 2015.


More Announcements
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."