Free check
Give us a domain. We read what it publishes.
We read public DNS live. Every line of the result carries what was read and when. No account needed.
The check takes about ten seconds.
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The diagnostic report itself is currently produced in French only. The check, the records and the values are identical; the explanations are not yet translated.
What we read
- MX, and the provider behind them
- SPF, with the real count of its DNS lookups
- DKIM, across 27 common selectors
- DMARC, including a policy inherited from a parent domain
- MTA-STS and TLS-RPT, for transport encryption
We don't read your messages, and we can't measure inbox placement: nobody can, from the outside.