Tool HTTP Header Check
What does a URL really return?
Enter a web address to see each redirect it goes through, the final status code, and the headers the server sends back.
About the HTTP Header Check
Every web page is sent with HTTP headers: a status code (such as 200 OK, 301 Moved Permanently or 404 Not Found) and lines that control caching, compression, cookies and security. They are invisible in the browser but matter for search engines, speed and safety.
This checker requests a URL and follows each redirect, showing the status code, server address and time for every hop. It then lists all headers of the final response and checks for important security headers such as Strict-Transport-Security, Content-Security-Policy and X-Frame-Options.
Frequently asked questions
Enter the address above. Each redirect appears as its own row with its status code, so you can see the full chain, for example from http to https and from www to the bare domain.
A 301 is permanent and tells search engines to move ranking to the new address. A 302 is temporary and keeps the original address in search results.
At minimum Strict-Transport-Security to enforce HTTPS, X-Content-Type-Options, a Referrer-Policy and X-Frame-Options or a Content-Security-Policy frame rule to prevent clickjacking.