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Interisle Appointed to Conduct RSSAC Review

Second Root Server System Advisory Committee (RSSAC2) Review

LOS ANGELES – 28 September 2017 - The Internet Corporation for Assigned Names and Numbers (ICANN) has appointed Interisle Consulting Group, LLC to conduct an independent review of the Root Server System Advisory Committee (RSSAC).

Selection of the Independent Examiner

The selection of an independent examiner is performed in accordance with ICANN's procurement process. All submitted proposals were carefully evaluated against selection criteria developed in collaboration with the RSSAC, including:

  • Technical knowledge and expertise.
  • Knowledge and understanding of ICANN.
  • Methodology.
  • Independence, including no conflict of interest.

RSSAC Organizational Review

In addition to assessing the effectiveness of the improvements resulting from the previous review conducted in 2008, the purpose of this review is to determine whether the RSSAC has a continuing purpose in the ICANN structure and, if so, whether any change in structure or operations is desirable to improve its effectiveness. This review will also determine if the RSSAC is accountable to its constituencies, stakeholder groups, organizations, and other stakeholders, as mandated by ICANN Bylaws.

The review is scheduled to commence immediately and will conclude in July 2018.


The RSSAC serves to advise the ICANN community and Board on matters relating to the operation, administration, security, and integrity of the Internet's Root Server System. Membership of the RSSAC is made up of representatives from the organizations responsible for operating global root name services. Representatives of the organizations responsible for the maintenance of the authoritative root zone also participate as non-voting members and additional non-voting members also participate from external organizations and groups.


For more information, visit the RSSAC Review wiki page.

For additional information about Interisle, visit their website.

Visit the Organizational Reviews page at for a permanent file of essential milestones, outputs, and final deliverables.

The RSSAC Organizational Review is mandated by ICANN Bylaws Section 4.4 "Periodic Review of ICANN Structure and Operations."


ICANN's mission is to help ensure a stable, secure and unified global Internet. To reach another person on the Internet, you need to type an address – a name or a number – into your computer or other device. That address must be unique so computers know where to find each other. ICANN helps coordinate and support these unique identifiers across the world. ICANN was formed in 1998 as a not-for-profit public-benefit corporation with a community of participants from all over the world.

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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."