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    • .tt

    Country-code top-level domainsDNSSEC

    Overview

    • .tt is the country code top-level domain (ccTLD) assigned to Trinidad and Tobago.
    • It is managed by the Trinidad and Tobago Network Information Centre (TTNIC) and sponsored by the University of the West Indies, Faculty of Engineering.
    • Registrations are permitted directly at the second level (example.tt) and at various third-level labels (example.co.tt, example.com.tt, etc.).
    • The TLD is used largely within Trinidad and Tobago and is also employed for domain hacks and URL shorteners.

    History

    • Introduced: 3 September 1991.
    • Registry/operator: Trinidad and Tobago Network Information Centre (TTNIC).
    • Sponsor: University of the West Indies (Faculty of Engineering).
    • Dispute policy: UDRP applies.

    Usage and Audience

    • Intended for entities connected with Trinidad and Tobago; commonly used by local businesses, organizations, and government or educational institutions under restricted subdomains.
    • Also used internationally for domain hacks and URL shorteners.
    • The registry does not require a physical presence in Trinidad and Tobago for most registrations, though foreign registrants are charged double in fees.
    • Special-use or free offerings:
      • .edu.tt: restricted to educational institutions in Trinidad and Tobago; offered free to local schools.
      • .gov.tt: reserved for government agencies (registrations handled by the government).
      • .mil.tt: restricted to the Military of Trinidad and Tobago.
      • .charity.tt: managed separately and offered free.

    Registration Rules

    • Structure:
      • Registrations allowed at the second level and at third level under many common labels (co.tt, com.tt, org.tt, net.tt, biz.tt, info.tt, pro.tt, name.tt, and others such as mobi.tt, travel.tt, museum.tt, aero.tt, tel.tt, etc.).
      • Certain second-level domains are restricted (.gov.tt, .edu.tt, .mil.tt).
    • Eligibility & policies (selected points):
      • Many labels are unrestricted and do not require local presence.
      • Foreign registrants pay higher registration fees (double the local rate).
      • Applicants/registrants must agree to TTNIC policies, including:
        • URL shorteners must include filters to block shortcuts to inappropriate content.
        • Sites deemed "risky" (malware, phishing, browser exploits, excessive popups, etc.) will be given notice to remediate; failure may lead to suspension or deletion.
        • Registered domain names are to be used solely by the registrant; sub-domains are not to be provided to third parties for free or for a fee.
        • The registry may reject domain applications deemed contrary to public policy or otherwise objectionable.
    • Allowed characters and length:
      • Only letters, numbers, and hyphens are permitted.
      • Maximum label length: 63 characters.
      • Domain names cannot begin with a hyphen.

    Notable Cases or Examples

    • Domain hacks and URL shorteners using .tt include:
      • ift.tt — URL shortener used by IFTTT.
      • mi.tt — URL shortener used by the 2012 Mitt Romney presidential campaign.
    • The .tt space has included free third-level subdomains offered by outside vendors (as noted by registry usage patterns).

    Operator

    University of the West Indies, Faculty of Engineering

    Whois

    % IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object

domain:       TT

organisation: University of the West Indies, Faculty of Engineering
address:      Kenneth S. Julien Building, Third Floor, Room 305
address:      St. Augustine
address:      Trinidad and Tobago

contact:      administrative
name:         Dr. Patrick Hosein
organisation: TTNIC
address:      84 Abercromby St.
address:      Port of Spain
address:      Trinidad and Tobago
phone:        +1 868 483 4454
e-mail:       admin@nic.tt

contact:      technical
name:         Dr. Patrick Hosein
organisation: TTNIC
address:      84 Abercromby St.
address:      Port of Spain
address:      Trinidad and Tobago
phone:        +1868 483 4454
e-mail:       tech@nic.tt

nserver:      A.LACTLD.ORG 200.0.68.10 2801:14:a000:0:0:0:0:10
nserver:      PCH.NIC.TT 2001:500:14:6063:ad:0:0:1 204.61.216.63
nserver:      RIPE.NIC.TT 193.0.9.50 2a13:27c0:30:0:0:0:0:50
ds-rdata:     2539 8 2 b06dfa79674df3ea8190e7616164414b01e9199b7c94ec1540378a395daa401f

whois:        

status:       ACTIVE
remarks:      Registration information: http://www.nic.tt

created:      1991-09-03
changed:      2025-08-22
source:       IANA

    Registrars