About
Requests a public URL and shows response headers so you can inspect cache, redirects, and security fields.
How to use
Enter a full URL including https://.
What this tool checks
Response headers on a public URL, such as cache-control, location, content-type, and HSTS when present.
How to read the results
A missing security header does not automatically mean the site is hackable; it means this response did not include it. CDNs may rewrite headers.
Limits and data handling
The server fetches the public URL. Do not paste authenticated admin URLs.
FAQ
Does it run page JavaScript?
No. It reads HTTP response headers, not a full browser render.
Which hop do I see after redirects?
Whatever response the tool actually received. Intermediate 3xx hops may be collapsed if only the final response is shown.
How is this different from browser DevTools?
The request leaves from the server. Cookies and region can differ from your machine.
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