Security Headers Inspector
Scan web servers for critical headers: CSP, HSTS, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy.
curl -I https://example.com to fetch headersHow to Use Security Headers Inspector
Enter website URL to scan.
Review the security score card and missing headers.
Copy recommended header configurations for Nginx, Apache, or Cloudflare.
Security Headers Inspector runs 100% client-side in your web browser. Your data, passwords, keys, and files are processed using the Web Crypto API and never transmitted to any server. Zero telemetry, zero storage, zero cloud processing.
Frequently Asked Questions
What is an A+ security header score?
An A+ requires a strict CSP, HSTS with preload, X-Content-Type-Options, and Referrer-Policy.
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