Fetch a URL and grade its HTTP security headers with concrete, prioritized fixes.
Security Header Analyzer requests a URL and evaluates the response headers that protect users — then assigns a clear grade and explains what is missing and why it matters.
It turns the often-overlooked header layer into an actionable checklist, ideal for quick hardening reviews and client reports.
This grades the full set of security headers at a high level. The CSP / CORS Analyzer drills specifically into Content-Security-Policy and cross-origin exposure.