|TLD type||Temporary country code top-level domain|
|Status||Temporary (not in root)|
|Intended use||Entities connected with Kosovo|
.xk is a temporary, unofficial country code top-level domain for Kosovo,[a] assigned under UN Security Council resolution 1244/99.
XK falls under the ISO 3166-1 "alpha-2 user-assigned codes", which include AA, ZZ, QM to QZ and XA to XZ. This means it is reserved for private use and will not be permanently assigned to any entity – nor used as a country code top-level domain.[failed verification] Thus, its use is unofficial and temporary, until Kosovo is assigned its own alpha-2 country code, with possible options including
.ko (although the latter might not end up chosen due to a possible use for a reunified Korea, if South Korea's current domain, .kr, is superseded).
The use of ISO 3166-1 the user-assigned elements removes the possibility that the code will duplicate a present or future ccTLD code