DNS Tools

NS Record Lookup

Look up a domain's NS records to see which nameservers manage its DNS.

Not sure what to enter? Try an example: wikipedia.org

Free & instant No signup How to use FAQ

Enter a domain to look up its NS records.

What is an NS record?

NS (nameserver) records say which DNS servers are authoritative for a domain - the servers that answer every other DNS question about it. They are normally set at your domain registrar and point to your DNS host, such as Cloudflare or your hosting company.

How to look up NS records

Enter the domain in the box above.
Click Look Up NS.
Check that the nameservers listed belong to the DNS provider where you manage your records.
If you recently moved DNS provider, allow up to 24-48 hours for the new nameservers to take effect everywhere.

Related checks

For a nameserver view with provider details, use the Nameserver Lookup.
To see the zone's SOA record, use the SOA Record Lookup.

Nameservers decide who controls every other DNS record, so an unexpected change here is serious. JustChecker monitors a domain's nameservers and emails you straight away if they switch to a provider you did not choose.

Frequently Asked Questions

NS ("Nameserver") records specify which DNS servers are authoritative for a domain - they're the servers the entire internet ultimately asks when resolving any other record type (A, MX, TXT, etc.) for that domain.

The registrar stores the "delegation" NS records (which the parent TLD points to), while a domain's own DNS zone can independently list its own NS records - these should normally match, and a mismatch is worth investigating.

Multiple nameservers provide redundancy - if one is temporarily unreachable, resolvers automatically fall back to another, so the domain keeps resolving even if a single DNS provider has an outage.

NS record changes at the registrar level are themselves subject to propagation delay (often up to 24-48 hours industry-wide), separate from the TTL of any individual record within the zone itself.

If ALL listed nameservers are unreachable, the entire domain stops resolving - no website, no email, nothing - which is why NS records are one of the most critical, foundational pieces of a domain's DNS setup.

Yes, and this is extremely common - your registrar is only where you bought the domain; NS records can point to any DNS hosting provider you choose, entirely independent of where the domain itself is registered.

There can be a brief transition window while the change propagates - the safest approach is ensuring the new nameservers have the exact same records configured before switching, so nothing is missing during propagation.

Share this tool:

Need a website for your business? Only $599