HTTP security headers
Server sideGrade a site's response headers and see exactly which protections are missing
Input
This tool runs on the AdminForge server, which needs to reach the target you enter. Nothing is stored or logged. Do not paste secrets into a server-side tool on an instance you do not control.
Fill in the form and run the tool. Results appear here.
The grade weights headers by how much they actually change browser behaviour, so a strong CSP counts for more than a Permissions-Policy. It is a starting point for a hardening conversation, not a compliance verdict — a policy can be present and still be permissive.