FREE PUBLIC DOMAIN SECURITY CHECK

See what your domain exposes.

Check public HTTPS, DNS, security headers, SPF, DMARC and security files. No credentials. No exploitation. For domains you own or are authorized to assess.

Checks included

HTTPS and HTTP status

A / AAAA / MX / NS DNS

HSTS

Content-Security-Policy

X-Frame-Options

X-Content-Type-Options

Referrer-Policy

Permissions-Policy

SPF

DMARC

robots.txt

sitemap.xml

security.txt

Need the deeper answer?

The free scanner identifies public signals. For authorized testing, remediation or engineering, Dominion Fortress can scope an external exposure review, penetration test, application/API assessment or security engineering engagement.

Request a detailed assessment →💬 Message Security Team