Free website check
Check your SSL certificate, security headers, email authentication and AI crawler files in seconds. No account needed.
What the free check looks at
- Valid and secure SSL certificate
- HSTS headers with subdomains and preload
- Content Security Policy (CSP) headers
- X-Content-Type-Options header
- X-Frame-Options header
- Referrer-Policy header
- HTTP to HTTPS redirects
- SPF records configured
- DMARC policy
- CAA records (certificate authority authorization)
- robots.txt file
- llms.txt file for LLM guidance
The full audit runs all 127 checks across every page of your site, every week, and emails you when something breaks.