Choose the record type you need
A and AAAA map names to IP addresses; CNAME aliases one name to another; TXT carries text-based configuration; MX, NS, SOA and CAA serve other DNS roles.
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Free public checker
DNS lookup
Look up a supported DNS record type for a domain or hostname.
Your result will appear here.
Run the check to see structured findings, severity, evidence and next steps from the public diagnostics API.
The details
Choose the record type you need
DNS answers can differ
Results are a point-in-time observation. Resolver caches, TTLs, split-horizon DNS and propagation can make answers differ between networks.
A result is a point-in-time check
DNS can vary by resolver and change over time. Verify important changes with your DNS provider and mail platform. Public DNS checks cannot see every private report or sending configuration.
Explore MailConfig ProFrequently asked questions
What does the DNS lookup do?
Look up a supported DNS record type for a domain or hostname.
Do I need an account?
No. This public tool is available without registration.