Skip to main content



レジストラは、レジストラ認定契約(2009 RAAおよび2013 RAAのセクション3.6)により、RDE仕様(PDF、30 KB)によって定義されるレジストラデータエスクロー(RDE)プログラムに従って特定の登録データをICANN承認のエスクローエージェントにエスクローする必要があります。すべてのレジストラおよびレジストラDEAは、RDE仕様の条件に準拠している必要があります。レジストラは、ICANNが指定したDEAを無料で使用できます。または、ICANNとレジストラの両方によって承認されたDEA(RDE仕様のセクション3.3.1のサードパーティプロバイダつまりTPPに従って)をレジストラの費用負担により使用できます。




DENIC Services GmbH & Co. KG
窓口:DENIC Escrow Services
電話: +49 6151 6292710

NCC Group Software Resilience (NA) LLC
窓口:Data Escrow Support
電話:+1 678 381 2764


Beilong Zedata (Beijing) Data Technology Co., Ltd
窓口:Zhang Lili
電話:+86 10 6252 3580

China Internet Network Information Center
窓口:Escrow Service
電話:+86 10 5881 3000

China Organizational Name Administration Center (CONAC)
窓口:Escrow Support
電話:+86 10 6900 1158

Joint Stock Companyインターネット相互接続"MSK-IX"
窓口:Data Escrow Services
電話:+7 495 737 9296

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."