Test website security headers free
Test which security headers your website sends and get a grade.
When do you use this?
Handy for a website owner.
Good to know
See also the Web & SEO category: a scan of example.com gave grade F with an explanation for each missing header (HSTS, CSP, X-Frame-Options...). The site loads Google Tag Manager and Cloudflare analytics. English-language interface. No account needed.
On this tool’s website: Google Tag Manager and Cloudflare analytics.
