Website Security Headers & Checklist
Most small and mid-sized web applications are compromised not by zero-day exploits, but by missing fundamentals: unpatched plugins, shared admin credentials without MFA, missing HTTP security headers, or backups that have never been tested. Use this 20-point practitioner checklist and offline header inspector to score your current baseline, save your progress locally, and print a prioritized remediation plan.
20-Point Security Baseline
Your selections are saved automatically in browser localStorage.
Security Posture Score
8 of 20 controls verified
Aim for 80+ for public company sites and 95+ for portals handling customer or financial data.
Top Priority Next Steps
Offline HTTP Response Header Inspector
Why paste headers? Browsers block static web pages from reading cross-origin HTTP headers directly due to CORS security rules, and this tool never sends your URL to an external proxy server. Run curl -I https://yourdomain.com in your terminal (or copy response headers from browser DevTools) and paste them below to inspect and auto-check your header controls.
| Header | Status | Value or Recommendation |
|---|
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