|April 15, 1994
|Country code top-level domain
|Guam Network Information Center
|University of Guam
|Entities connected with Guam
|Not very heavily used
|Must have a contact in Guam
|Registrations are accepted only at the third level beneath various second-level labels
.gu is the Internet country code top-level domain (ccTLD) for Guam.
Registrations are free of charge but are limited to people or companies with a contact in Guam, and are limited to third-level registrations beneath second-level names such as .com.gu. There has not been very much use of .gu addresses.
There are five Second Level Domains: