PublicDNS Tools

The tool runs several checks in the background and assigns points for:

  • Valid SSL/TLS and modern protocol
  • Presence of DNSSEC
  • SPF / DMARC / CAA configuration
  • Key HTTP security headers

The result is a score from 0–100 and a letter grade (A–F) for a quick overview of hygiene. It is not a full security audit.