NS Lookup

Find authoritative nameservers for any domain plus the resolved IP for each NS. Free, instant nameserver lookup.

About this NS Lookup tool

Authoritative nameservers tell the world where to fetch your zone data. CheckHub returns every NS record plus the A/AAAA address each NS resolves to.

How to use the NS Lookup

Step 1. Enter a domain.
Step 2. Read the NS list and resolved IPv4/IPv6 for each nameserver.

Frequently asked questions

Why do I have 4+ nameservers?: Most registrars assign two to four NS records by default for redundancy. Anycast providers like Cloudflare often serve more.

Related DNS Tools

DNS Propagation Checker - Check DNS propagation across global servers
DNS Lookup - Look up DNS records for any domain
Reverse DNS - Find hostname from IP address
DNS Compare - Compare DNS records between two domains
DNSSEC Checker - Verify DNSSEC configuration
MX Lookup - Look up mail server records