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From Wikipedia, the free encyclopedia
Introduced18 December 1995
TLD typeCountry code top-level domain
RegistryTonga Network Information Center (Tonic)
SponsorGovernment of Tonga
Intended useEntities connected with  Tonga
Actual useUsed for a varied assortment of sites, few related to Tonga. Often used for torrent websites, technology startups in Toronto, domain hacks, and unlicensed movie streaming websites.
Registration restrictionsOpen to everyone, but use for spam or and some vulgar words are prohibited.
StructureRegistrations permitted at second level; some Tonga-related entities have domains at third level under labels like .gov.to
Dispute policiesSome trademarked names reserved; no other dispute policy
Registry websiteTonic
Tonic logo

.to is the Internet country code top-level domain (ccTLD) of the Kingdom of Tonga.

The government of Tonga sells domains in its ccTLD to any interested party. The .to ccTLD is administered by the Tonga Network Information Center (Tonic).[1]


The .to top-level domain was widely commercialized in 1997 by the San Francisco company Tonic Corp. (founded by Eric Gullichsen and Eric Lyons) which would sell domains at $100 per unit. They operated with the approval of Prince Siaosi, then-Crown Prince of Tonga. Network Solutions was already selling .to domains, but in a very chaotic fashion. Domain requests were processed by the Tongan consulate in San Francisco.[2]

The top-level domain to itself had an A record and an HTTP server since at least 1998.[3]


Because to is a common English preposition, it became popular to craft memorable URLs called domain hacks that take advantage of this; URL shortening/redirection services (e.g. go.to) and torrent aggregators (e.g. isohunt.to) are popular uses. Other domain hacks do not use the to as a preposition but rather as a syllable inside of a word, including Daniel J. Bernstein's website cr.yp.to, London web development company Potato p.ota.to.

"T.O." (tee-oh) is also a common nickname for Toronto, Ontario, Canada, and is used as a city domain. This domain is also used for the city of Torino (Turin), Italy, and also as a domain hack in Slavic languages (to meaning it or that) – such as the uploading service uloz.to ("ulož to" means "save it" in Czech and Slovak).

As the .to domains are purchased, all normal DNS operations are possible and registered sites are not required to display ads on behalf of the registrar. Some domains are free, like .edu.to, but only to real Tongan educational institutions. At this moment businesses registered in Tonga can also get free domains. People who sell on .to domains can claim a commission.

.to is one of the few ccTLDs that (officially) do not maintain a (public) WHOIS database providing registrant information. It is possible to contact domain registrants via tonic.to by typing the domain in the domain search field under "New Domain Name".[4] This has resulted in limited popularity for the use of .to for websites involved in copyright infringement.

The .to registry allows the creation of emoji domain names. A former .to registrar, Register.TO, did support the search and registration of .to emoji domain names.[5][6] Register.TO is no longer an authorized registrar for .to domain names, following the death of its owner in early 2023 as stated by the NIC of Tonga.[7]


  1. ^ Tonga Network Information Center
  2. ^ Corcoran, Elizabeth (1 July 1997). "Tiny Tonga expands its domain". The Washington Post. Retrieved 11 March 2021.
  3. ^ to. at the Wayback Machine (archive index)
  4. ^ "Tonic Corporation Frequently Asked Questions: Does Tonic offer a whois service?". Tonic.
  5. ^ Hughes, Matthew (15 August 2017). "This site helps you find the perfect Emoji domain name (with one caveat)". The Next Web. Retrieved 4 September 2017.
  6. ^ "Register.TO".
  7. ^ ".To registry assures Register.to customers that their domains are safe". Domain Name Wire. 2 March 2023.

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