. gu is the country code top -level domain ( ccTLD) for Guam. They were introduced on 15 April 1994 and is administered by the State University.


Domains are only logged on to third level. There are the following second- level domains:

  • Com.gu - commercial companies
  • Net.gu - Internet Service Provider (ISP )
  • Gov.gu - Government and other agencies
  • Org.gu - Nonprofits
  • Edu.gu - educational institutions

Overall a must. Gu domain be between three and 63 characters and contain only alphanumeric characters. Internationalized domain names are not supported. The top -level domain may only be used by individuals and legal entities established in Guam.