Security Monitor — Continuous External Security Monitoring

Scan once. Stay in control. 170+ checks across DNS, email, TLS, headers, reputation and breaches — cross-verified with VirusTotal, Shodan and HIBP.

Free instant security scan

Enter any domain and get a full external security report in under 60 seconds. No signup required for the first scan.

What we check

DNS configuration and DNSSEC
Email authentication (SPF, DKIM, DMARC, BIMI, MTA-STS)
TLS / SSL certificates and cipher strength
HTTP security headers (HSTS, CSP, X-Frame-Options)
Exposed services and open ports
Data breaches and leaked credentials
Reputation (VirusTotal, Shodan, Google Safe Browsing)

Plans and pricing

Free one-time scan, Continuous Monitoring from €19/month, Full Visibility from €189/month with team seats and compliance reporting.

Built in the EU · GDPR-compliant · 2,000+ domains protected

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Live Dataset

The State of External Security

Aggregated, anonymized findings from real domains scanned by Security Monitor over the last 90 days. Free to cite — please link back to securitymonitor.io/stats.

How does your domain compare?

Run a free external security scan and benchmark against this dataset.

Free Security Scan