Check DNS propagation for Canadian domains and networks: CIRA Canadian Shield plus 10 other public resolvers, queried live.
Map key: each dot is the country where a resolver's operator is headquartered (number = resolvers), coloured by result. It does not show where the query ran — most of these resolvers are anycast networks with servers in many cities.
These are 12 large public resolvers, queried live over encrypted DNS-over-HTTPS from our servers. Most are anycast networks with many locations, so we show which resolver answered — not a city. Two (CIRA Canadian Shield) are run by the organization that operates .ca. Your ISP's resolver may still show an older answer until its cache expires.
Whether you run a Vancouver plumbing site, a Toronto SaaS or a Montréal shop, a DNS change reaches Canadian visitors through the same chain: your DNS host → the .ca registry (for nameserver changes) → public resolvers → the visitor's ISP resolver. Each step keeps a cached copy until its TTL runs out, which is why a change can look live on your phone and still be missing at a customer's Bell or Rogers connection.
Use the checker above. It asks 12 public resolvers at once, including CIRA Canadian Shield (Private and Protected), the DNS service run by the Canadian Internet Registration Authority, which also operates the .ca registry.
The same as anywhere: record edits follow the old TTL (often minutes to a few hours); .ca nameserver changes commonly take a few hours and sometimes up to 48.
Yes — this page. It queries 12 public resolvers including the two CIRA Canadian Shield resolvers. It does not claim city-by-city results, because queries are sent from our servers, not from inside each ISP.
Your ISP's resolver still holds the old record. Wait for the TTL to expire, or temporarily switch your device to a public resolver such as CIRA Canadian Shield.