Security Headers for wp-admin and the Login Page
Sends nosniff, a strict referrer policy, a restrictive permissions policy and a cross-origin opener policy on dashboard and login pages, which front-end header snippets do not cover.
Snippet Library
Security snippets for WordPress
Snippets that harden WordPress: turn off XML-RPC, hide the version number, stop user enumeration, add security headers and block risky uploads. Small, reviewable changes for site owners who want fewer attack points without a heavy security plugin.