All TLDs / .gu

What is .gu?

.gu is the country-code top-level domain assigned to Guam, run by University of Guam. It's live in the IANA DNS root zone. Registration is open through accredited registrars, though some country registries add local-presence or ID requirements.
Type
Country code (Guam)
Registration
Open to public
In DNS root
Yes

Registry operator: University of Guam — per the IANA root database.

Source: IANA root zone database, checked August 23, 2026.

Is .gu a real domain extension?

Yes — .gu is a real top-level domain. It's present in the official IANA DNS root zone, which is the authoritative list of every live TLD on the internet.

Who runs .gu?

.gu is operated by University of Guam, the registry responsible for Guam, per the IANA root database.

What is .gu used for?

.gu is the extension tied to Guam. Many country codes are also used generically for branding when the letters spell something useful.

Can anyone register a .gu domain?

Generally yes — .gu is open through accredited registrars, though some country registries require local presence or ID. Availability of a specific name depends on whether it's already taken.

.gu and Guam

.gu is the country-code top-level domain assigned to Guam, administered by the registry University of Guam.

.gu is the Internet country code top-level domain (ccTLD) for Guam.

Source: Wikipedia — .gu (CC BY-SA)

Check if you can register a .gu domain

Search on NamecheapSearch on DynadotSearch on Porkbun

Not sure this is the right extension? Start from what you’re building, or compare it on the full TLD list.