🔍 HTTP Header Checker
Check HTTP response headers for any URL — status codes, security, cache, content
The HTTP Header Checker fetches response headers for any URL through a server-side proxy. Enter a web address and the tool returns the HTTP status code along with security headers, cache directives, content type, and other metadata. Use it to audit your site's security posture, verify redirects, or inspect third-party API responses.
What Is the HTTP Header Checker?
Free tool that fetches and displays HTTP response headers for any URL.
Key Features
- Full Headers: Every response header from the target URL.
- Color-Coded Categories: Security, cache, content, server.
- Status Code: With color badges.
- One-Click Copy: Click any value or copy all.
When to Use
Debug redirects, audit security headers, check cache settings, verify content-type.
How It Works
Sends GET request via proxy, reads all response headers, displays categorized by type.
How to Use
- Enter a URL (include https://).
- Click Check Headers.
- Review headers organized by category.
- Click any value to copy it.
Frequently Asked Questions
What are HTTP response headers?
Metadata sent by servers with each response — content type, cache, security, etc.
How do I check HTTP headers?
Enter URL and click Check. All headers displayed by category.
What are security headers?
CSP, HSTS, X-Frame-Options — protect from XSS, clickjacking, and other attacks.
Is this tool free?
Yes, completely free. No signup, no limits.
Can I check any URL?
Yes, any publicly accessible HTTP/HTTPS URL.