NS Lookup

Look up authoritative nameservers for a domain and export the results if needed.

Results

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NS Lookup retrieves the authoritative nameserver records published for a domain, which is useful for delegation checks and DNS provider validation.

Query A, AAAA, CNAME, NS, PTR, SOA, SRV, CAA, and TXT records.

Check mail exchange records, priorities, and resolved IPs.

Query SRV records with service and protocol inputs.

Learn how to read NS records, understand what they say about delegation, and spot signs of stale nameservers, mismatches, or broken authority.

Learn what NS records do, how nameserver delegation works, and how to troubleshoot DNS authority and resolution issues in real-world setups.

A practical guide to checking an MX record, reading priorities and targets, and confirming whether mail is routed to the provider you expect.