jfkconsulting

This plugin allows you to take full control over how your WordPress site handles 404 (Not Found) errors. Instead of the default theme’s 404 page, you can:
<ul>
<li>Display a Custom 404 Page: Choose any published page on your site to serve as your 404 error page.</li>
<li>Log 404 Errors: Keep track of which URLs are causing 404 errors, including the referring URL, IP address, and user agent. This helps identify broken links or malicious activity.</li>
<li>Analyze Logs: View statistics like the most frequent 404 URLs and top referrers directly in your WordPress admin.</li>
<li>Create Automatic Redirects: Easily set up 301 (permanent) or 302 (temporary) redirects for specific 404 URLs to send visitors to the correct content. Track redirect hits.</li>
<li>Export Logs: Download your 404 error logs as a CSV file for external analysis.</li>
<li>Optionally Redirect All 404s to Homepage: A simple option to redirect all 404 errors directly to your site’s homepage.</li>
<li>Add <code>noindex</code> Tag: Automatically add a <code>noindex, follow</code> meta tag to your 404 pages (custom or default) to prevent search engines from indexing them.</li>
</ul>

Custom 404 Handler

Customized 404 page, error logging with analysis, automatic redirects and export functionality.

ReorMadrid

<h4>English</h4>
This plugin allows you to use one of your pages as a custom 404 error page. Most themes have a very basic 404 error page, lacking links or alternatives to help users find the information they were looking for. With this plugin, you can create a personalized page where you can add links or menus to keep visitors engaged.
No coding or programming is required. Simply install the plugin, activate it, select a page, and click the Save button.
This plugin is lightweight and features 100% transparent code, with no obfuscation.
Usage: Install this plugin and activate it. Go to Settings and open Easy Custom 404 Error Page. Select the page you want to use for 404 errors and click Save. That’s it—no further action is needed.
<h4>Español</h4>
Este plugin te permite utilizar una de sus páginas para convertirla en su página de error 404. La mayoría de temas tienen una página de error 404 muy básica, sin links y sin alternativas para localizar la información que se buscaba. Puedes crear una página personalizada donde puede colocar links o menús con el fin de retener esa visita.
No hay que programar ni tocar el código. Simplemente instalar el plugin, activarlo, seleccionar una página y pulsar el botón de guardar.
Este plugin es muy ligero y tiene un código 100% transparente sin codificaciones.
Uso: Instala este plugin y actívalo. Ve a ajustes y entra en Easy Custom 404 Error Page. Busca la página que quieres usar si hay un error 404 y pulsa en guardar. No hay que hacer nada más.

Easy Custom 404 Page

Customize your 404 error page very easy. Simply select a page and save.

Custom 404 Handler vs Easy Custom 404 Page