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Static 404 page to minimze resource usage during bruteforce attacks

Introduction: In WordPress, dynamic 404 error pages are generated for non-existent URLs, which can consume server resources and impact website performance during high traffic or brute force attacks. To mitigate this issue, Middlehost developed a lightweight plugin, "Static 404," which returns a static 404 response for such URLs, improving performance and security.


Overview of the Static 404 Plugin:

The Static 404 plugin is designed to handle 404 errors more efficiently by bypassing WordPress's dynamic template system and delivering a static response instead. This ensures that server resources are conserved and the performance of your website remains unaffected even during heavy attacks targeting non-existent URLs.

Features:

  • Serves a static 404 response for non-existent URLs.

  • Reduces server load caused by dynamic 404 page generation.

  • Easy to install and use without additional configuration.

  • Lightweight and does not interfere with other functionalities.

Installation and Usage Guide:

  1. Download the Plugin: Copy the plugin code provided below or download the plugin file from Middlehost’s official GitHub repository.  https://github.com/middlehost/wp-static-404/
    Or use this direct download link https://github.com/middlehost/wp-static-404/archive/refs/heads/main.zip

  2. Upload the Plugin:

    • Log in to your WordPress admin dashboard.

    • Navigate to Plugins > Add New > Upload Plugin.

    • Upload the plugin file (wp-static-404.zip) and click Install Now.

  3. Activate the Plugin: After installation, click Activate to enable the Static 404 plugin on your website.

  4. Verify Functionality:

    • Test by visiting a non-existent URL on your site (e.g., yourdomain.com/nonexistent-page).

    • You should see a simple "Page not found" message without the usual WordPress 404 template.

How It Works: The plugin hooks into WordPress’s template_redirect action and checks if the current page is a 404. If it is, it uses wp_die() to deliver a static response with a 404 HTTP status code and a minimal message. This bypasses the dynamic rendering process, conserving server resources.

Benefits:

  • Performance Optimization: Prevents resource-intensive dynamic page generation for frequent 404 requests.

  • Enhanced Security: Reduces the impact of brute force or bot attacks targeting non-existent URLs.

  • Ease of Use: Simple implementation without configuration hassles.

Support and Updates: For support or to suggest improvements, please contact Middlehost Support.

Conclusion: The Static 404 plugin is an essential tool for WordPress site owners looking to optimize their site’s performance and protect against attacks targeting non-existent URLs. By serving static 404 responses, this plugin ensures your site remains fast and reliable under all conditions.