HTTP Header Analyzer

Enter a URL to fetch and display its HTTP response headers.

What are HTTP Headers?

HTTP headers are key-value pairs exchanged between a client (like your browser) and a server when you access a web page. They carry crucial information about the request or the response, such as content type, caching policies, security settings, server software, and more.

Why Analyze HTTP Headers?

  • Debugging: Identify issues with redirects, caching, or content delivery.
  • SEO: Check for correct implementation of canonical URLs, hreflang, or mobile-friendliness signals.
  • Security: Verify security headers like Content-Security-Policy (CSP), HTTP Strict Transport Security (HSTS), X-Frame-Options, etc., are correctly configured to protect your site and users.
  • Performance: Inspect caching headers (Cache-Control, ETag, Expires) to optimize load times.
  • Understanding Server Configuration: Get insights into the web server software and its setup.

How to Use

  1. Enter the full URL of the website you want to analyze (e.g., https://example.com).
  2. Click "Fetch Headers".
  3. The tool will make a request to the URL from our server and display the response headers it receives.

Note: The request is made from our server, so the headers you see are what our server receives. This can be different from what your browser receives due to network variations or server-side logic based on the requesting IP/User-Agent.