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The en is a subdomain of wikipedia.org. Although wikipedia.org is usually considered to be the domain name, wikipedia is actually a sub-domain of the org TLD (top level domain). Any fully qualified domain name can be a host or a subdomain. A domain name that does not include any subdomains is known as an apex domain, root domain, or bare domain ...
This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet.A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. [1]
Each Wikipedia project has a code, which is used as a subdomain of wikipedia.org. The codes mostly conform to ISO 639-1 two-letter codes or ISO 639-3 three-letter codes, with preference given to a two-letter code if available. [14] For example, en stands for English in ISO 639-1, so the English Wikipedia is at en.wikipedia.org.
All ASCII ccTLD identifiers are two letters long, and all two-letter top-level domains are ccTLDs. In 2018, the Internet Assigned Numbers Authority (IANA) began implementing internationalized country code top-level domains, consisting of language-native characters when displayed in an end-user application. Creation and delegation of ccTLDs is ...
The Internet Assigned Numbers Authority (IANA) maintains an annotated list of top-level domains in the DNS root zone database. [16] For special purposes, such as network testing, documentation, and other applications, IANA also reserves a set of special-use domain names. [17] This list contains domain names such as example, local, localhost ...
The hierarchy of domains descends from right to left; each label to the left specifies a subdivision, or subdomain of the domain to the right. For example, the label example specifies a subdomain of the com domain, and www is a subdomain of example.com. This tree of subdivisions may have up to 127 levels. [26]
This is a list of the oldest extant registered generic top-level domains used in the Domain Name System of the Internet. Until late February 1986, Domain Registration was limited to organizations with access to ARPA. Public registration was revealed on Usenet on February 24, 1986. [1]
The Public Suffix List (PSL) is a community-maintained list of rules that describe the internet domain name suffixes under which independent organisations can register their own sites. Entries on the list are referred to as effective top-level domains ( eTLDs ), [ 1 ] and contain commonly used suffixes like com, net and co.uk, as well as ...