Skip to main content







  • 在与gTLD注册商和注册局、ccTLD运营商和IP地址注册局的联系中,ICANN的角色将发生怎样的转变?
  • gTLD供应限制的取消和gTLD分销渠道的变化将如何转变ICANN的职责?
  • gTLD注册商和注册局是否应当做为ICANN的"消费者"或域名系统分销渠道来看待?
  • 转变ICANN职责,支持一套健康的唯一标识符生态系统(域名、IP地址和AS编号)的成熟。
  • ICANN是否应当积极促进域名系统中的企业和技术创新?为什么应该?又或者为什么不应该?如果应该促进,则应如何处理?

单击此处查看之前的集体讨论/意见 [PDF, 209 KB]。向下滚动页面,查看该问题的其他解答。




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."