HTTP Headers Viewer
View HTTP response headers for a URL.
Enter a URL and click "View Headers" to see the HTTP response headers.
How to Use the HTTP Headers Viewer:
- 1 Enter the full URL (including `http://` or `https://`) of the website whose HTTP headers you want to inspect.
- 2 Click the "View Headers" button.
- 3 The tool will fetch and display the HTTP response headers received from the server for that URL.
- 4 This tool requires a server-side component to fetch headers due to browser security restrictions (CORS).
What are HTTP Headers?
HTTP headers are key-value pairs that are sent along with every HTTP request and response between a client (like your browser) and a server. They contain essential metadata about the transaction, such as the content type, caching policies, and security information.
Why View HTTP Headers?
For developers, SEO specialists, and network administrators, inspecting HTTP response headers is crucial for:
- Debugging: Checking status codes (e.g., 200 OK, 301 Redirect, 404 Not Found, 500 Server Error) to diagnose issues.
- Performance Optimization: Analyzing `Cache-Control` and `Expires` headers to ensure content is being cached correctly by browsers.
- Security Analysis: Verifying security-related headers like `Content-Security-Policy`, `Strict-Transport-Security`, and `X-Frame-Options`.
- SEO: Ensuring correct redirect chains (301 vs. 302) and canonical link headers are properly implemented.