NS Lookup Tool
Check nameserver records to validate domain delegation and DNS control changes.
NS Lookup Tool
Type: NS
Authoritative nameservers
NS Lookup Features
✓
Authoritative NS visibility
See nameservers currently published for a domain.
✓
Migration validation
Confirm cutover to expected nameservers during DNS transfers.
✓
Copy JSON
Share resolver output with ops, registrar support, or hosting vendors.
Frequently Asked Questions
Why run NS lookup before a DNS migration?
It verifies delegation is pointing to the correct nameserver set before traffic and email records are switched.
Can I use NS lookup for subdomains?
You can query subdomains, but delegation typically applies at zone boundaries depending on DNS configuration.
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