| .tt | |
| Background: |
|
| Type: | Country code top-level domain |
| Status: | Active |
| Registry: | Trinidad and Tobago Network Information Centre (TTNIC) |
| Sponsor: | University of the West Indies (Faculty of Engineering) |
| Intendeduse: | Entities connected with |
| Actualuse: | Used largely in Trinidad and Tobago, with a scattering of other use including free third-level subdomains offered by outside vendor |
| Restrictions: | None (except under .gov.tt, .mil.tt and .edu.tt) |
| Structure: | Registrations permitted directly at second level or at third level beneath various labels |
| Document: | Terms and conditions |
| Disputepolicy: | UDRP |
| Website: | TTNIC |
.tt is the internet country code top-level domain (ccTLD) in the Domain Name System of the Internet for Trinidad and Tobago.
The Trinidad and Tobago Network Information Centre (TTNIC) allows registrations under for second-level domains, and for third-level domains under the following domains:,,,,,,,,,,,,,, and .[1] Registration under the above domains is unrestricted and the registry does not require applicants to have a physical presence in Trinidad and Tobago. However, registrants with a foreign address are charged double.[2]
In addition, there is, restricted to entities in the Military of Trinidad and Tobago, is a registry for educational institutions in Trinidad and Tobago,[3] and reserved for agencies of the government.
Domain hacks using include, and, URL shorteners used for Dropbox, IFTTT and the 2012 U.S. presidential campaign of Mitt Romney,[4] respectively.