Free Tool Guide
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5 min read
How to Use the Free DNS Lookup Tool
See every DNS record for any domain and understand what each one does.
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DNS is the address book of the internet. When something breaks — email stops arriving, a new site won't load, a domain verification fails — the answer is almost always in the DNS records.
The DNS Lookup Tool queries authoritative nameservers and shows you every common record type for a domain in one place.
The record types, explained
- A / AAAA — the IPv4 / IPv6 addresses the domain points to
- MX — mail servers that receive email for the domain
- CNAME — an alias pointing one name at another
- TXT — free-form text: SPF, DKIM, and domain-verification records live here
- NS — the authoritative nameservers for the domain
- SOA — the "start of authority" with serial and refresh metadata
Common things you can diagnose
- Email not arriving? Check the MX and TXT (SPF/DKIM) records
- Just moved hosts? Confirm the A record points to the new server
- Verification failing? Make sure the expected TXT record is published