List of domain extensions

.tt

.tt is a country-code extension for Trinidad & Tobago, run by University of the West Indies, Faculty of Engineering. University of the West Indies, Faculty of Engineering sets who can register .tt names; some country codes need a local address, so check its rules before you buy.

TypeCountry code
Registry operatorUniversity of the West Indies, Faculty of Engineering
CountryTrinidad & Tobago
Who can registerSet by the registry
DNSSECSigned
RDAP serverNone listed
WHOIS serverNone listed
IANA recordiana.org/domains/root/db/tt

Registrars that sell .tt

Integrated
Integrated
Integrated

From the list of domain registrars. Other registrars may sell it too.

New to extensions? The guide to how domain extensions work covers generic, country-code and brand extensions. For who sells extensions in general, see the list of domain registrars.

Sources: the IANA root zone database and the ICANN list of generic extensions (refreshed 2026-10-24). Something out of date? Tell us.

Frequently asked questions

Who runs the .tt extension?

University of the West Indies, Faculty of Engineering is the registry operator for .tt, the country-code extension for Trinidad & Tobago. The registry keeps the list of every .tt name; registrars sell the names to the public.

Can anyone register a .tt domain?

University of the West Indies, Faculty of Engineering sets who can register .tt names; some country codes need a local address, so check its rules before you buy.

How do I look up who owns a .tt domain?

The .tt registry doesn't publish a public RDAP or WHOIS server listed with IANA, so registration data has to come from the registry's own website.

Is .tt signed with DNSSEC?

Yes. The .tt zone is signed, so a .tt domain can turn on DNSSEC once its registrar adds a DS record.