Free tools

What we look at in your environment, you can look at too.

Tools we use ourselves to assess an environment, open to everyone. No account to create, no access to your systems: we only read what is public. The list grows as we build more.

Email security

Check your domain

Can someone send email in your name? We read SPF, DKIM, DMARC, BIMI, MTA-STS and DNSSEC from your domain's public DNS. A grade in three seconds, the full report by email.

Run the check

A tool you would like to see here? Tell us which one.