Here is a quick WordPress tutorial, which will show you how to redirect 404 error pages to a custom URL or your homepage without any plugins but some simple codes. Using this code will redirect any page that does not exist to the custom URL you want.

The code will need to be added to the theme functions, but please do remember to replace the URL with your own custom URL. And this code uses a 301 permanent redirect, which ensures that search engines can update their index to reflect the new URL.

By implementing this simple fix, you can enhance your website’s user experience and prevent visitors from leaving due to frustrating error messages. Additionally, you can create a custom 404 page that provides useful information to your visitors or redirects them to your homepage. Thank you.