All TLDs / .do

What is .do?

.do is the country-code top-level domain assigned to Dominican Republic, run by Pontificia Universidad Catolica Madre y Maestra, Recinto Santo Tomas de Aquino. 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 (Dominican Republic)
Registration
Open to public
In DNS root
Yes

Registry operator: Pontificia Universidad Catolica Madre y Maestra, Recinto Santo Tomas de Aquino — per the IANA root database.

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

Is .do a real domain extension?

Yes — .do 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 .do?

.do is operated by Pontificia Universidad Catolica Madre y Maestra, Recinto Santo Tomas de Aquino, the registry responsible for Dominican Republic, per the IANA root database.

What is .do used for?

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

Can anyone register a .do domain?

Generally yes — .do 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.

.do and Dominican Republic

.do is the country-code top-level domain assigned to Dominican Republic, administered by the registry Pontificia Universidad Catolica Madre y Maestra, Recinto Santo Tomas de Aquino.

.do is the country code top-level domain (ccTLD) for the Dominican Republic. The Network Information Center .do has administered the domain since 1991.

Source: Wikipedia — .do (CC BY-SA)

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