Allow Your Site to Be Embedded Only on Partner Domains
Replaces the usual same-site framing rule with a Content-Security-Policy frame-ancestors list, so your pages can be shown in iframes on the partner sites you name and nowhere else.
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.
Block IP Addresses That Trigger Many 404 Errors
Temporarily blocks visitors who hit more than 20 missing pages within a minute, a typical sign of vulnerability scanners probing for old plugins and backup files.
Cross-Origin Opener Policy and Related Isolation Headers
Sends Cross-Origin-Opener-Policy, Origin-Agent-Cluster and X-Permitted-Cross-Domain-Policies headers on public pages, which stop other sites you link to or that open yours from reaching into your pages.
Limit Guesses on Password-Protected Posts
Allows each visitor at most 10 password attempts on password-protected posts and pages every 15 minutes, which stops bots from brute-forcing the post password.
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.