.ca is the Internet country code top-level domain (ccTLD) for Canada. CIRA (The Canadian Internet Registration Authority) manages the registry operation for .ca since 2000.
Anyone who wants to register a .ca domain name must have a presence in Canada.
In 2008, CIRA announced that it has surpassed one million .ca domain name registrations. It hit 2.5 million domain names in 2016.
Since January 2013, .ca is open for French IDNs which means you can use French characters in your domain name.
.CA domain extension ranks #17 among all domain extensions, and #11 among all country-code extensions (ccTLDs). Currently, there are 2.6 Million registered .ca domain names. CIRA is the registry of .ca extension.
The oldest (still exists) .ca domain name is acei.ca, and it was registered on 05 February 1998.
The most popular .ca domain name is amazon.ca. Its worldwide rank is 161.
.CA domains are most popular in Worldwide. Canada and United States are the other countries that have most .ca domain registrations.