🌐 What is HTTP Header Viewer?
The HTTP Header Viewer is a free online tool that lets you inspect the HTTP response headers returned by any website or URL. It helps developers, SEO specialists, and security analysts understand how a server responds to requests.
🧾 What Are HTTP Headers?
HTTP headers are metadata sent by a web server in response to a browser's request. They contain important information such as:
✅ Status Code (e.g. 200 OK, 301 Redirect, 404 Not Found)
✅ Server Type (e.g. Nginx, Apache, Cloudflare)
✅ Content-Type (e.g. text/html, application/json)
✅ Redirect Location if the page redirects
✅ Security Headers like CORS, CSP, HSTS🚀 How to Use This Tool
Simply paste any valid URL into the input box and click "Check Headers". The tool will fetch the response headers using a secure backend API and display them in a readable format.
💡 Why Use It?
- 🔍 Debug redirect chains and response codes
- 🔐 Check for missing security headers (like HSTS, X-Frame-Options)
- ⚙️ Inspect cache settings and content type
- 🌎 Understand how third-party services or APIs respond
All requests are server-side. No sensitive data is logged or stored.