According to GoDaddy, the .CA domain extension in an Internet address represents that the website has connections to or is intended to cater to Canadian audiences. The extension is the official top-level domain name extension for Canada.
Registering a website with a .CA extension can be done at most Internet domain name registrars. However, there are certain eligibility requirements that must be met before applying for one. Anyone attempting to register such an extension must be one of the following: a Canadian citizen, local representative, corporation, trust, partnership, association, trade union, political party, educational institution, hospital, Indian band, Aboriginal peoples, government or trademark holder.