DNS Lookup

Resolve DNS records for a domain name.

What this checks

  • Forward records: A and AAAA addresses the domain points to.
  • Mail and delegation records: MX mail servers and NS name servers.
  • Policy and metadata records: TXT (SPF/DKIM/verification), CNAME aliases, SOA zone data, and CAA issuance rules.
  • Reverse DNS (PTR) for the first resolved IPv4 address.

How to interpret results

  • Multiple A/AAAA records usually mean load balancing or a CDN in front of the domain.
  • Missing MX records mean the domain does not receive mail at that name; TXT SPF/DKIM entries support deliverability.
  • CAA records restrict which certificate authorities may issue TLS certificates for the domain.

Common issues

  • Recently changed records may differ from what your local resolver has cached until the TTL expires.
  • Some authoritative servers rate-limit or omit record types such as TXT or CAA.

Privacy note

DNS lookups are run server-side against public DNS and the entered domain is not stored beyond serving the request.

Key Tools and References

Frequently Asked Questions

Which DNS records does this tool resolve?

It resolves A (IPv4), AAAA (IPv6), MX (mail), NS (name servers), TXT, CNAME, SOA, and CAA records, plus the reverse DNS (PTR) of the first A record.

Why are some records empty?

A record type only appears when the domain publishes it. For example, many subdomains have no MX or CAA records, and a domain with a direct A record will not also show a CNAME at the apex.

Does this query my own resolver?

No. The lookup runs from the server's resolver, so results reflect public authoritative DNS rather than your local network. Use the DNS Leak Test to inspect your own resolver path.