Canada has the internet country-code top-level domain .ca.
The .ca suffix identifies websites connected with Canada and is the country-code counterpart to generic endings such as .com. A domain such as example.ca can signal a Canadian business, organization, public body, or audience. Registrants must generally satisfy Canadian presence requirements, including citizenship, residency, incorporation, or another qualifying connection.
The domain was allocated in 1987 by Internet pioneer Jon Postel to John Demco of the University of British Columbia. The first .ca domain was registered by the University of Prince Edward Island in January 1988. The Canadian Internet Registration Authority, or CIRA, has operated the registry since December 2000.
The suffix is sometimes confused with country codes for Cape Verde, Cameroon, or Cambodia, but none of those countries uses .ca. Cape Verde uses .cv, Cameroon uses .cm, and Cambodia uses .kh. Canada’s provincial domains, such as .ab.ca and .on.ca, also exist historically, although ordinary second-level .ca registrations are now standard.