| 单词 | top-level domain |
| 释义 | > as lemmastop-level domain top-level domain n. Computing the last component of a domain name, which classifies the corresponding IP address by location, sphere of activity, etc.; abbreviated TLD.In the hierarchical domain name system, the top-level domain represents the second-highest level, after the unnamed domain to which all TLDs belong..com, .edu, .gov, .net, .org, and country-based top-level domain names such as .au, .in, .uk, .us, are some of the commonest in use. ΚΠ 1982 Z. Su & J. B. Postel Request for Comments (Network Working Group) (Electronic text) No. 819. 6 The registrar of the naming universe specifies the top-level set of domains and designates a registrar for each of these domains.] 1982 Z.-S. Su & J. Postel Domain Naming Convention for Internet User Applications (Network Working Group: RFC 819) 9 in www.rfc-editor (accessed 15 Feb. 2022) Note very carefully that the top-level domain ‘ARPA’ does not map one-to-one with the ARPANET—domains are administrative, not topological. 1996 Internet World Dec. 18/1 With the next two years, Internet users can expect to see 150 new top-level domains (TLDs)—adding to the familiar .com, .edu, .gov, and the like. 2017 Guardian (Nexis) 12 Mar. Five years ago, the body in charge of names on the internet, ICANN, swept away regulations and opened up a new world of additional web address suffixes, or top-level domains, including .art. < as lemmas |
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