Top-level domain

A top-level domain, or TLD, are the letters that follow the final dot of the domain names.

There are several kinds of TLDs:

 Infrastructure: One TLD, the .arpaIANA -- .ARPA Zone Management - Retrieved December 10, 2010
 Countries: Usually they are codes with two letters according to ISO 3166.
 Sponsored: They are promoted by collectives, organizations, the US government or territories with its own language and culture.
 Generic: They are .com, .net, .org and .info.
 Generic restricted: .edu, .gov, .mil

Related pages
Country code top-level domain (includes a list)

 References