.ca
.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).
| Introduced | May 14, 1987 |
|---|---|
| TLD type | Country code top-level domain |
| Status | Active |
| Registry | Canadian Internet Registration Authority |
| Sponsor | Government of Canada |
| Intended use | Entities connected with Canada |
| Actual use | Popular in Canada, where .ca is advantageous when selling to a Canadian audience in Canadian dollars. |
| Registered domains | 3,329,987 (2022-12-11) |
| Registration restrictions | There are Canadian presence requirements for registrants |
| Structure | Provincially registered companies originally had to register at third level under province code, but now anybody may register at second level |
| Documents | Official CIRA documents |
| Dispute policies | CIRA Domain Name Dispute Resolution Policy (CDRP) |
| DNSSEC | Yes |
| Registry website | 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, but existing third-level domain names continue to be supported.
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