.ca

.ca
CIRA — Canadian Internet Registration Authority
IntroducedMay 14, 1987; 37 years ago (1987-05-14)
TLD typeCountry code top-level domain
StatusActive
RegistryCanadian Internet Registration Authority
SponsorGovernment of Canada
Intended useEntities connected with Canada
Actual usePopular in Canada, where .ca is advantageous when selling to a Canadian audience in Canadian dollars.
Registered domains3,383,905 (4 September 2024)[2]
Registration restrictionsThere are Canadian presence requirements for registrants
StructureProvincially registered companies originally had to register at third level under province code, but now anybody may register at second level
DocumentsOfficial CIRA documents
Dispute policiesCIRA Domain Name Dispute Resolution Policy (CDRP)
DNSSECYes[1]
Registry websiteCIRA

.ca is the Internet country code top-level domain (ccTLD) for Canada. The domain name registry that operates it is the Canadian Internet Registration Authority (CIRA).

Registrants can register domains at the second level (e.g., example.ca). Third-level registrations in one of the geographic third-level domains defined by the registry (e.g. example.ab.ca) were discontinued on October 12, 2010,[3] but existing third-level domain names continue to be supported.

  1. ^ "DNSSEC: Securing the domain name system". Canadian Internet Registration Authority. Archived from the original on 17 November 2015. Retrieved 13 November 2015.
  2. ^ "Canadian Internet Registration Authority (CIRA)". Canadian Internet Registration Authority (CIRA). 4 September 2024. Archived from the original on 2022-12-11. Retrieved 4 September 2024.
  3. ^ ".CA FAQ — October 12, 2010". Canadian Internet Registration Authority. 12 October 2010. Archived from the original on 13 September 2010. Retrieved 20 October 2010.