Email Security Analyzer

One report on everything that protects a domain's mail: SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT, DANE and BIMI, scored and explained.
sync_alt

Runs in your browser and on our edge servers

DNS questions go from your browser to public resolvers; HTTP checks go through a dotbunker edge server. Nothing is stored.

Data sources

DNS over HTTPS · Cloudflare · Google · HTTP · dotbunker edge