. tt is the country code top -level domain ( ccTLD) of the State of Trinidad and Tobago. It was introduced on 3 September 1999 and is managed by the University of the West Indies.
Domains are allocated at second, and third level. In addition. Tt are the second- level domains. Co.tt and. Com.tt for commercial companies. Net.tt for Internet Service Providers and. Org.tt for other organizations to choose from. A. Tt- domain must be a total of between two and 63 characters.