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想要注册通用顶级域名("gTLD")( 的个人或法律实体可通过 ICANN 委任的注册服务商进行注册。遍布全球的数百家委任注册服务商可提供本地语言支持。有关当前所有ICANN 委任的注册服务商的列表,请访问。域名注册人和 ICANN 委任的注册服务商之间的关系受双方签订的注册协议的约束。


ICANN 已经发布注册人权利与责任文件,确立并总结了 2009 注册商委任协议 (RAA) 以及纳入 RAA 的 ICANN合意政策与规范中提出的现有注册人权利与责任。这份公布的文件是 GNSO 和一般会员咨询委员会联合工作组咨询注册商后得出的初步意见。注册人权利与责任文件可在以下位置找到:

关于 ICANN 委任的注册服务商

任何想要提供 gTLD 域名注册服务且可直接访问 gTLD 注册管理机构的实体必须获得 ICANN 的委任。要获得委任,感兴趣的实体必须申请委任并证明其符合作为注册服务商所必须满足的所有技术、运营和财务要求。ICANN 和每个委任注册服务商之间的关系受注册服务商委任协议 (RAA) 的制约,该协议规定了双方的义务。


ICANN 工作人员向注册服务商、注册人和公众提供有关 ICANN 委任的注册服务商的信息和一般支持以及ICANN RAA。工作人员还帮助潜在注册服务商准备和审查委任申请,维持注册服务商委任资格并确保注册服务商履行 RAA 规定的义务。

ICANN 委任仅适用于 gTLD。任何想要获得有关国家或地区顶级域名注册或委任的个人或法律实体应联系相应的注册管理执行机构

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."