HTTP Header Viewer: Inspect Response Headers for Any URL
View the HTTP response headers returned by any website. Useful for debugging caching, security headers, and server configuration.
What It Does
The HTTP Header Viewer sends a request to any URL and displays the complete HTTP response headers. This includes cache control, content type, security headers, server information, and custom headers. It helps diagnose web performance and security issues.
How to Use It
Enter a URL in the input field and click View Headers. The tool displays all response headers in a clean, readable format. Click on any header name for an explanation of what it does. Copy all headers or individual values.
Tips & Tricks
Check for security headers like Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security. Look at Cache-Control values to understand how assets are being cached. Compare headers between staging and production environments to spot configuration differences.
Use Cases
Web developers debug caching issues by inspecting Cache-Control and ETag headers. Security auditors check that essential security headers are present. DevOps engineers verify CDN and server configurations through header inspection.
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