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Security Headers vs Hardenize: catalog facts
Security HeadersHardenize
Free

Free to scan sites in the browser.

Freemium

The public report is free; continuous monitoring is a paid service.

Web Web
  • Simple A+ to F grade that is easy to share
  • Option to hide results and follow redirects
  • Free public configuration report for any domain
  • Continuous certificate and perimeter monitoring for organisations
  • Scans appear in a public recent list unless hidden
  • Covers headers only, not TLS or application flaws
  • Monitoring features are aimed at organisations rather than individuals
  • Little public detail about pricing
Web application Web application, Hosted service
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Needs internet Needs internet

Checked September 23, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.