Type
Country code (Cuba)
All TLDs / .cu
What is .cu?
The short answer
.cu is the country-code top-level domain assigned to Cuba, run by CENIAInternet. 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.Source: IANA root zone database, checked October 18, 2026.
Is .cu a real domain extension?
Yes — .cu 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 .cu?
.cu is operated by CENIAInternet, the registry responsible for Cuba, per the IANA root database.
What is .cu used for?
.cu is the extension tied to Cuba. Many country codes are also used generically for branding when the letters spell something useful.
Can anyone register a .cu domain?
Generally yes — .cu 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.
.cu and Cuba
.cu is the country-code top-level domain assigned to Cuba, administered by the registry CENIAInternet.
.cu is the country code top-level domain (ccTLD) for Cuba.
Source: Wikipedia — .cu (CC BY-SA)