What is a DNS lookup?

A DNS lookup asks for a selected record type for a domain name. A and AAAA identify network destinations, MX identifies mail delivery targets, and NS identifies authoritative servers.

Reading the result

NetKarte queries Cloudflare's DNS-over-HTTPS resolver from the server. NXDOMAIN means the name does not exist; NODATA means the name exists but the requested record type does not.

ALL

NetKarte's ALL option performs separate queries for each supported type. It is not the historical DNS ANY query.

Choose a type by your question

• Web destination: A and AAAA; aliases: CNAME.
• Mail destination: MX; text settings: TXT.
• DNS authority and zone: NS and SOA.
• Certificate issuance policy: CAA.

In DNS Lookup, enter a name, select the type, complete verification, and search. ALL checks eight supported types, not unknown subdomains or every DNS type. Read multiple results by record number; copying all is section-specific.

Failure is not absence

For no records, review the name and type. Timeout or SERVFAIL is not evidence of missing configuration. Cloudflare's response and short-lived caching may differ from your corporate DNS. DNS names containing underscores, such as _dmarc.example.com, are also accepted.