Check HTTP Headers
Enter a URL to inspect its HTTP response headers
Why Use Our HTTP Headers Checker?
Request & Response Headers
View both request and response headers with full details — not just basic header output
Security Headers Audit
Automatic analysis of 7+ security headers — HSTS, CSP, X-Frame-Options, X-Content-Type-Options, and more
Caching Optimization Check
Evaluate Cache-Control, ETag, Expires, and other caching headers for performance optimization
Cookie Security Review
Inspect Set-Cookie headers — check Secure, HttpOnly, and SameSite attributes
Status Code Explanations
Clear explanations for every HTTP status code — understand what each response means
Custom Request Options
Set custom headers, choose HTTP methods (GET, HEAD, POST, OPTIONS), and control redirects
Export & Share
Download reports as PDF, copy headers, or download raw HTTP response
Completely Free
No signup, no limits — check HTTP headers for any URL
How to Check HTTP Headers — 3 Simple Steps
1. Enter URL
2. Configure Request
3. Analyze Headers
When You Need to Check HTTP Headers
- Security Audits
- Verify HSTS, CSP, X-Frame-Options, and other security headers are properly configured
- Performance Optimization
- Check caching headers to ensure efficient content delivery and reduce server load
- API Debugging
- Inspect CORS headers, content types, and response codes when integrating APIs
- Cookie Verification
- Check Secure, HttpOnly, and SameSite attributes on cookies for security compliance
- Redirect Troubleshooting
- Trace redirect chains and verify correct status codes (301 vs 302)
- Server Configuration
- Verify server software, content encoding, and other technical headers after deployment
Why Use Our HTTP Headers Checker?
Our HTTP headers checker provides more than raw header output — it analyzes security posture, evaluates caching strategy, inspects cookie security, and explains every status code. With custom request options, 7+ security header checks, and multiple export formats, it's a complete HTTP debugging tool for developers, security professionals, and site owners.
Security Header Audit
7+ security headers checked with actionable recommendations
Caching Analysis
Evaluate caching headers for optimal performance
Cookie Inspection
Check Secure, HttpOnly, SameSite attributes
Status Code Explanations
Clear descriptions for every HTTP status code
Custom Requests
Set headers, choose methods, control redirects
CORS Verification
Inspect cross-origin resource sharing configuration
Raw Data Access
View and download unformatted HTTP response
Free & Unlimited
No signup, no limits — check any URL