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Free tool

Is your domain properly configured?

Enter your company domain and see, in seconds, what is wrong with your mail and DNS — with what each item means and what to do.

What this tool does — and never does

  • It only reads public information: DNS records and mail policies anyone can look up.
  • It never scans ports, tests for vulnerabilities, or attempts authentication against your infrastructure. That is penetration testing, it requires a contract and written authorisation, and it is a paid service.

What we do not check yet

This version covers mail, DNS, the domain registration, sending blocklists, the certificate and the site's security headers. If something you would expect to be checked is missing, tell us.