How to Implement a Custom 404 Error Alert System in WordPress Without Plugins

In this tutorial, you will learn how to enhance your WordPress site’s error-handling capabilities by setting up a custom 404 error page that sends email alerts to the site administrator when a page is not found. This proactive approach helps administrators stay informed about potential issues, facilitating prompt investigation and resolution.

Before proceeding with any customizations in WordPress, it’s essential to set up a child theme. A child theme acts as a safe and efficient way to make modifications without affecting the parent theme. If you haven’t set up a child theme yet, follow this tutorial on How to Create a