What is HTTP Headers?
Enter a URL and this tool follows its entire redirect chain (301, 302, 307, 308…) to the final response, showing you each hop with its status code and destination. It also lists all the HTTP headers of the response: content-type, caching, cookies and security headers like HSTS, CSP or X-Frame-Options.
It is the most direct way to verify that a redirect works as expected, check whether a site forces HTTPS, review a resource's cache configuration or audit security headers before a deployment. The request is made by a Cloudflare Worker on the server, so it avoids the browser's CORS limitations.
Frequently asked questions
Is it free?
Yes, all NewKit tools are completely free.
How does it work without installing anything?
The tool runs on Cloudflare Workers at the edge: your browser makes a lightweight request to our server, which performs the network lookup and returns the result. There is nothing to configure.
Is there a usage limit?
To keep the service free and within Cloudflare's free tier, we apply a reasonable daily request limit. For normal use you will not notice it.