DNS Records Checker
Analyze a domain’s DNS configuration
The tool queries a selected resolver and groups common records: A, AAAA, CNAME, MX, NS, SOA, TXT, CAA, DS and DNSKEY. It also looks for SPF and DMARC policies published through TXT records.
Understanding the result
A and AAAA records map a name to an IP address. MX describes mail reception, NS lists authoritative servers and SOA carries zone parameters. CAA restricts which authorities may issue certificates. SPF and DMARC help reduce email spoofing but should be combined with DKIM.
Caching, propagation and DNSSEC
The TTL controls how long an answer may remain cached. Two resolvers can therefore temporarily show different data after a change. DNSSEC indicators report published data and, when available, validation signaled by the resolver; they are not a complete chain audit.
Troubleshooting
Check the syntax, the exact queried name and the authoritative servers first. Then compare several resolvers and wait for the TTL to expire before deciding that a change was not applied.
Practical notes
The analysis gathers common DNS records and highlights SPF, DMARC, CAA and available DNSSEC signals. A missing value may also depend on the selected resolver.
RecordsA through DNSKEY
EmailSPF and DMARC
ResolversControlled selection
Frequently asked questions
Why can answers differ between resolvers?
Caching, propagation and DNSSEC validation can temporarily produce different observations.
Do SPF and DMARC fully protect a domain?
They reduce spoofing when correctly configured, but should be combined with DKIM and a coherent mail policy.
What does TTL mean?
It indicates how many seconds an answer may remain cached.