What is HTTP Header Checker?
HTTP Header Checker analyzes HTTP response headers for any URL. It highlights security headers and identifies missing protections. Essential for security auditing and ensuring proper server configuration.
Common Use Cases
Security Audit
Check if security headers like HSTS and CSP are configured.
Debugging
Inspect headers during API development and testing.
Compliance
Verify security headers meet compliance requirements.
Performance
Check cache headers and compression settings.
How to Use This Tool
- Enter a URL to check
- Click "Check Headers" to make the request
- View response headers and security analysis
- Identify missing security headers
Frequently Asked Questions
What security headers should I have?
Essential security headers include HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy.
Why might some requests fail?
CORS restrictions may block requests from browsers. The tool shows demo data when actual requests are blocked.
What is HSTS?
HTTP Strict Transport Security tells browsers to only use HTTPS, preventing downgrade attacks.