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第三版根区标签生成规则 (RZ-LGR-3) 正式发布


洛杉矶——2019 年 7 月 10 日——互联网名称和数字地址分配机构 (Internet Corporation for Assigned Names and Numbers, ICANN) 于今日宣布发布第三版根区标签生成规则 (RZ-LGR-3)。这些规则为域名系统 (Domain Name System, DNS) 根区中所使用的国际化域名 (Internationalized Domain Name, IDN) 有效标签及其变体标签的确定编制了一套标准。

总共 28 种文字中已有 16 种文字确定了最大启动字汇,且已整合进入根区标签生成规则 (RZ-LGR)。该规则的第一版 (RZ-LGR-1) 于 2016 年 3 月发布,其中纳入了阿拉伯文字。该规则的第二版 (RZ-LGR-2) 于 2017 年 8 月发布,整合了另外五种文字,包括:埃塞俄比亚语、格鲁吉亚文、高棉语、老挝语和泰国语。第三版规则 (RZ-LGR-3) 则整合了另外十种文字:梵文、古吉拉特文、果鲁穆奇文、希伯来文、埃纳德文、马来亚拉姆文、奥里雅语、僧伽罗文、泰卢固文和泰米尔文。亚美尼亚语和西里尔文的提案现已定稿,但需等到相关文字的提案也定稿后才可最终被整合进入本规则之中。在相关提案定稿后,余下文字也将被纳入 RZ-LGR 的后续版本中。

这些标签生成规则由相应的社群标签生成专家组制定,由整合专家组在公共评议期结束后进行评估和整合,遵守了根区国际化域名应用 (INDA) 标签生成规则的编制和维护流程 [PDF, 1.4 MB]。


ICANN 的使命在于确保全球互联网的稳定、安全与统一。在互联网上寻找另一个人的信息,您必须在您的电脑中键入一个地址——可以是一个名称或是一串数字。这一地址必须是独一无二的,只有这样电脑之间才能互相识别。ICANN 则负责协调这些分布在全球各地的唯一标识符。ICANN 成立于 1998 年,是一家非营利公益型企业,其社群成员遍布全球各地。ICANN 及其社群致力于确保互联网的安全性、稳定性和互用性。该组织还负责制定互联网顶级域系统的政策,提高该系统的竞争水平,并促进其他互联网唯一标识符的使用。如需了解更多信息,请参见

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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."