Short for generic top-level domain.

This group of top-level domains (TLDs) refers to those that are not bound to a specific country (such as www.example.dk) 

Examples of generic top-level domains (gTLDs):

 .com

.net

.org

.info

.gov

.biz

.name

.museum

The list of gTLDs is expanding continuously as ICANN approves them.

See also

ccTLD