Domain Tools

Nameserver Lookup

Find out which nameservers a domain uses.

Enter a domain below to instantly check which nameservers it currently uses - the servers that actually answer every DNS query for that domain, including its A, MX, and every other record.

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Nameservers determine WHERE a domain's DNS records actually live and get managed - if you've recently moved a domain to a new DNS provider (or a new host that manages DNS for you), the nameservers shown here confirm whether that migration has actually taken effect, since any DNS record change you make will have no effect at all until the domain's nameservers correctly point to the provider where you're making that change. JustChecker tracks your DNS records continuously and alerts you the moment something changes.

What Is the Nameserver Lookup?

Nameservers are the servers that hold a domain's DNS records. This tool shows which nameservers a domain uses, which tells you where its DNS is managed.

When to Use It

To know where to add or edit DNS records.
After changing nameservers at your registrar, to confirm the switch.
When connecting a domain to a host that asks you to use its nameservers.

How to Use It

Enter the domain.
Compare the nameservers with the ones your DNS provider gave you.

Understanding the Result

Names such as *.ns.cloudflare.com, ns-*.awsdns-* or dns*.hostinger.com show the provider. DNS edits only take effect at the provider these nameservers point to.

Limitations

Nameserver changes can take up to 48 hours to be seen everywhere. The DNS Propagation Checker shows which resolvers already see the new nameservers.

Frequently Asked Questions

Yes, very commonly - if your domain's nameservers still point to your old DNS provider, any changes you make somewhere else (like a new host's DNS panel) have zero effect, since queries for your domain never even reach that new provider. Check here first that your nameservers actually match where you're trying to make changes.

Nameserver changes are typically slower to propagate than regular DNS record changes, often taking anywhere from a few hours up to 24-48 hours, since nameserver records themselves are frequently cached with longer TTLs at the registry level.

Nameservers are the authoritative servers responsible for answering DNS queries for your domain - think of them as "where the phone book is kept". DNS records (A, MX, TXT, etc.) are the actual entries inside that phone book. Changing a DNS record only works at whichever nameservers are currently authoritative for the domain.

This is standard practice for redundancy - if one nameserver is temporarily unreachable, DNS resolvers automatically try the others, so your domain keeps resolving normally. Most registrars and DNS providers require at least 2 nameservers for exactly this reason.