Skip to main content

ICANN and the CZ.NIC Association Announce the Installation of the L Root Server in Prague, Czech Republic

Marina del Rey, CA — October 26, 2009 — ICANN and the CZ.NIC Association today announced the installation of the L Root Server in Prague, Czech Republic. The L Root Server is one of the thirteen Root Name Servers which underpins the Internet's Domain Name System (DNS).

The installation in Prague expands L's footprint into Europe, in combination with installations in Miami and Los Angeles.

"By providing a mirror for the L Root Server we attempt to support the Internet infrastructure not only in our country," said Ondrej Filip, Executive Director of the CZ.NIC Association. "The L Root Server in Prague serves the entire Internet, globally."

The DNS is involved in almost every service provided over the Internet, and as such its security and stability is very important. The performance and reliability of web sites, social media, e-mail and instant messaging all depend on the DNS, as do business-to-business communications which increasingly tie together the global economy.

Joe Abley, Director of DNS Operations at ICANN, stated that "ICANN is pleased to be able to work with CZ.NIC to provide local access to the L Root Server in Prague. This new installation will contribute to security and stability of the Root Server system globally, and especially in the European region."

About ICANN:

To reach another person on the Internet you have to type an address into your computer - a name or a number. That address has to be unique so computers know where to find each other. ICANN coordinates these unique identifiers across the world. Without that coordination we wouldn't have one global Internet. ICANN was formed in 1998. It is a not-for-profit public-benefit corporation with participants from all over the world dedicated to keeping the Internet secure, stable and interoperable. It promotes competition and develops policy on the Internet’s unique identifiers. ICANN doesn’t control content on the Internet. It cannot stop spam and it doesn’t deal with access to the Internet. But through its coordination role of the Internet’s naming system, it does have an important impact on the expansion and evolution of the Internet. For more information please visit:

About CZ.NIC:

CZ.NIC, z. s. p. o., is an interest association of legal entities, founded in 1998 by leading providers of Internet services. The association currently has 63 members. The key activities of the association include operation of the domain name registry for the .CZ domain and the (ENUM) domain, operation of the CZ top- level domain and public education in the area of domain names. The association is now intensively working on development of the ENUM system, extension and improvements of the domain administration system and support of new technologies and projects beneficial to the Internet infrastructure in the Czech Republic. CZ.NIC is a member of international organizations uniting similar organizations around the world (CENTR, ccNSO and more) and a member of the EURid association, managing the European domain .EU.


Brad White
phone +1.301.365.3571


Vilém Sládek
phone +420 222 745 117

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"""" is not an IDN."