The dig Command: DNS Troubleshooting Without Guesswork

How to query specific resolvers, read response sections, and trace DNS delegation.

Reproducible DNS diagnosis

Name the resolver explicitly and compare its answer with an authoritative source. Short output is convenient for scripts but hides TTL and response status.

dig @1.1.1.1 example.com A
dig example.com NS
dig +trace example.com A

If resolvers disagree, inspect TTL, the change time, and the authoritative answer before calling it an outage.

Check it with Net Utils

Use the relevant Net Utils tool and compare the structured output with your expected configuration. Public network data changes, so confirm important conclusions with a repeat test.