[1] 
>
any DNS zone administration is described as
a "registry", and the terms "registry" and "zone administrator" are
used interchangeably, regardless of the actual administrative
arrangements or level in the DNS tree. 

;; [2] [CITE@en[RFC 5890 - Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework]]
<http://tools.ietf.org/html/rfc5890#section-2.2>

[6] 
>As with other documents in the IDNA2008 set, this document uses the
term "registry" to describe any zone in the DNS.  That term, and the
terms "zone" or "zone administration", are interchangeable.

;; [5] [CITE@en[RFC 5894 - Internationalized Domain Names for Applications (IDNA): Background, Explanation, and Rationale]] ([TIME[2011-02-05 07:34:29 +09:00]] 版) <http://tools.ietf.org/html/rfc5894#section-1.2.2>

* 関連

- [3] [[登録]]
- [4] [[レジストラ]]

[7] [[Windowsレジストリー]]とは無関係です。