The 15-Point WordPress Hardening Checklist: Server-Level Lockdown Guide

Most WordPress security guides tell you to do three things: update your plugins, pick a strong password, and install a security plugin.

While those steps are fundamental, they represent less than 20% of an effective defense strategy. Over 80% of persistent WordPress breaches exploit architectural weaknesses in server configurations, file execution permissions, and database privilege scopes.

If you are an agency owner, developer, or business running mission-critical sites, here is the architectural checklist we enforce for every Delvok client to ensure security by design.

The 5 Core Pillars of WordPress Hardening

1. Filesystem Execution Restrictions: Never allow the web server to execute a .php file inside a directory meant for user-uploaded media.
2. Database Privilege Minimization: Your WordPress database user should never have FILE, DROP, or GRANT privileges during standard operation.
3. Restricting Administrative Endpoints: Rate-limit wp-login.php and restrict XML-RPC completely to eliminate brute force botnet pressure.
4. Read-Only Core Code: Lock wp-config.php and core files so they cannot be overwritten by a compromised web process.
5. Continuous File Integrity Telemetry: Audit filesystem changes every 5 minutes against cryptographic hashes.

If executing these server-level configurations is beyond your hosting stack's capabilities, read how Delvok provides pre-hardened container hosting out of the box.