HTTP Security Headers Evaluator & Generator
Processed in your browser
Evaluate security posture and generate modern HTTP security response headers including CSP, HSTS, X-Frame-Options, and Permissions-Policy.
Header Configuration Toggles
Estimated Security Grade
A+
Hardened against XSS, clickjacking, and MIME confusion.
Nginx add_header Configuration
⚡
Direct In-Browser Handoff
API Testing & HTTP Diagnostics Suite
Chain this tool with complementary private browser utilities for a complete zero-server workflow:
Helpful Examples
A+ Grade Security Headers
Generate strict production headers
HSTS 2-years, CSP self, nosniff, DENYHow to Use the HTTP Security Headers Evaluator & Generator
Web application security configuration generator. Audit and create hardened HTTP headers including Content-Security-Policy (CSP), Strict-Transport-Security (HSTS), X-Content-Type-Options, Referrer-Policy, and Permissions-Policy with copyable snippets for Nginx, Apache, and Vercel.
Privacy & Data Processing Notice
No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.
Frequently Asked Questions
What is the purpose of Strict-Transport-Security (HSTS)?
HSTS forces modern web browsers to communicate exclusively over secure HTTPS connections, preventing SSL-stripping and man-in-the-middle attacks.
Related Utilities
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