HTTP Header Inspector
Parse, edit, and rebuild HTTP headers, with duplicate detection and a security-header checklist.
Headers: 5Security headers present: 0/6
Raw headers
Parsed headers
HTTP/1.1 200 OK
×2
×2
Security header checklist
Content-Security-Policy— Restricts sources for scripts, styles, and more.
Strict-Transport-Security— Forces HTTPS on future visits.
X-Content-Type-Options— Blocks MIME-sniffing (expects "nosniff").
X-Frame-Options— Prevents clickjacking via framing.
Referrer-Policy— Controls how much referrer info leaks.
Permissions-Policy— Restricts access to browser features.