Free website security scanner
Get instant security analysis of any website. Check SSL certificates, security headers, open ports and vulnerabilities in seconds.
Comprehensive security overview
The scanner checks several aspects of your site to give a complete picture of its security posture.
- SSL/TLS analysis
- Certificate validity, cipher strength and TLS configuration for secure connections.
- Security headers
- HSTS, Content-Security-Policy, X-Frame-Options and the rest of the response headers that protect a browser session.
- Port scanning
- Which ports are reachable from the public internet, and which of those should not be.
- Vulnerability check
- Known CVEs affecting the software versions the scan is able to identify.
Need continuous security monitoring?
A one-off scan is a snapshot. WebGuardian agents track CVEs, file integrity and process activity continuously, and alert you in under 30 seconds when something changes.