NS (Nameserver) Lookup
Free NS lookup. List the authoritative nameservers for a domain. Instant DNS lookup to confirm your DNS delegation, no login required.
About the NS (Nameserver) Lookup
This free NS lookup lists the authoritative nameservers for a domain - the servers that hold its DNS records. Confirming your nameservers is the first step when DNS changes are not taking effect or when you are migrating DNS providers.
Enter a domain to see which nameservers are authoritative for it.
Frequently asked questions
What is an NS record?
An NS (nameserver) record lists the authoritative servers for a domain's DNS. These are the servers that answer for your SPF, DMARC, MX and all other records.
Why do my DNS changes not take effect?
Changes must be made at the authoritative nameservers this lookup shows. If you are editing DNS somewhere other than your active nameservers, the changes will not apply.
How many nameservers should a domain have?
At least two, for redundancy. Most providers give you two to four. This lookup shows all of them.
Did this check reveal a problem?
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