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  • ICANNが認定している2社のレジストラの合併。この場合、レジストラはICANNが認定している1社のレジストラに合併されることになり、合併され消滅する団体の認定は終了します。

  • ICANNが認定しているレジストラと認定していないレジストラの合併。この例では、合併後に残る団体が、ICANN認定のレジストラになります(そのまま継続する場合と、新たに認定レジストラになる場合があります)。


  1. 企業合併に関する契約者の写し(機密事項を除外するように編集しても構いません)。

  2. 企業登録局からの定款および健全な資産状態の証明。

  3. 一時連絡先の更新フォーム [PDF、638 KB](変更が必要な場合)、および

  4. 該当する場合には以下の資料も提出する必要があります。

    • 2009年RAAのレジストラの場合、レジストラの役員および取締役のリスト。

    • 2013年RAAのレジストラの場合、更新されたレジストラ情報仕様フォーム [XLSX、111 KB]。

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."