.dk is the country code top-level domain (ccTLD) for Denmark. The supervision of the .dk top-level domain is handled exclusively by DK Hostmaster. Any new .dk domain name has to be applied for via an approved registrator. Then the domain name applicant can ask the registrator to manage his domain name or have it managed directly by the DK Hostmaster. Registrations of domain names with the characters æ, ø, å, ö, ä, ü, and é are also allowed.
The country code top-level domain .dk was created July 14, 1987, at ARPA Network Information Center, Stanford Research Institute (SRI-NIC). The Danish UNIX User Group (DKUUG) at Datalogisk Institut, Københavns Universitet (DIKU) received management of the .dk domain on the DKnet, at that time an informal name used for the UUCP network used at DIKU and other places in Denmark. The name DKnet has been in use since at least 1986.
In mid-1988 DKnet was connected to the emerging DENet, the government-sponsored research network established in late 1987 now known as forskningsnettet, run and maintained by UNI-C.
DK (or variants) may refer to: