NS Record Lookup
Identify authoritative nameservers for any domain.
How to Use This Tool
- What to Enter
- Enter a domain to find its authoritative NS (Name Server) records and verify DNS delegation.
- What You Get
- Lists all NS records with hostnames, resolved IPs, TTL values, and delegation consistency check.
How to Interpret Results
NS records define which servers are authoritative for a domain. All listed nameservers should return consistent answers. Mismatched NS records between registrar and zone can cause intermittent resolution failures. Most domains use 2-4 nameservers for redundancy.
Common Issues & Troubleshooting
Lame delegation occurs when NS records point to servers that do not host the zone. Inconsistent NS records between the registrar (parent zone) and the domain zone itself cause unpredictable behavior. Single-nameserver setups create a single point of failure.