NS Record Lookup Tool

Check NS records instantly across multiple global resolvers to validate your authoritative nameservers.

How to troubleshoot domain delegation with an NS Lookup

Whenever you change web hosts, switch to a CDN like Cloudflare, or register a new domain, you must update your nameservers. Enter your domain name above to instantly query its active NS records. This helps you confirm which DNS provider is currently in control of your domain's routing.

Interpreting your Nameserver results

  • Nameserver Mismatch: Sometimes the NS records returned by the public resolver differ from what you entered at your domain registrar. This usually means the DNS propagation is still ongoing. Nameserver changes can take up to 48 hours to fully propagate globally.
  • Lame Delegation: If the lookup returns nameservers, but your website and emails are completely down, you might have a "lame delegation". This happens when the listed nameservers are not actually configured to answer queries for your specific domain.
  • Missing Records: If no NS records are found, the domain might be unregistered, suspended by the registrar (e.g., due to missing WHOIS verification), or completely misconfigured at the Top Level Domain (TLD) registry.

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