Dig provides a more detailed DNS response than a basic lookup: you can choose the record type, resolver, TCP query, and DNSSEC data for deeper domain diagnostics.
A and AAAA records define IP addresses, MX handles mail routing, NS shows nameservers, and TXT is often used for SPF, DKIM, DMARC, and domain ownership checks.
Resolver selection helps compare answers from Google, Cloudflare, Quad9, and OpenDNS, while DNSSEC shows signatures and extra authenticity data.
Dig is useful for checking domain delegation, resolver differences, issues after website migration, email problems, and slow DNS propagation.
Use the online Dig utility for deeper DNS diagnostics. Choose a record type and resolver, then inspect the answer section, authority data, additional records and timing returned by the DNS query.
Dig is useful for checking A, AAAA, MX, TXT, NS, CAA and DNSSEC-related data, comparing public resolvers and investigating propagation after domain, hosting or mail changes.