See whether your NS record change has spread: 12 public resolvers, queried live, side by side.
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.
NS records name the authoritative nameservers for a domain — the servers that hold all your other DNS records. Changing nameservers at your registrar (for a .ca domain, through your CIRA-accredited registrar) moves control of the whole zone.
Type your domain in the box above, keep NS selected and press Search. We ask 12 public DNS resolvers — including two run by CIRA Canadian Shield — at the same moment and show each answer side by side.
Every green row should list the new nameservers. If some rows still show the old ones, the change is still spreading. Make sure the full zone (A, MX, TXT…) is already recreated at the new DNS host before you switch, or services will break.
Commonly a few hours; occasionally up to 48 hours because the parent zone and resolver caches must refresh.
They cached the old NS set and will refresh when its TTL expires.
Anything missing from the new zone — websites, email, verification records. Copy every record first.