Free Tool
Security Headers Checker
Scan a site for the security headers that protect visitors, and see what’s missing at a glance — free, no account needed.
Embed this tool on your website
Free to use on your own site — copy one snippet and it just works.
FAQ
About security headers
A quick primer on what these headers do and how we can help.
We harden websites for a living.
Security headers, HTTPS, and sensible defaults — configured and tested properly so your site is safer without breaking.