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.

Quaxen

A simple and easy to use custom 404 page, or basic 404 to home page redirect.

Axon 404

A simple and easy to use custom 404 page, or basic 404 to home page redirect.

Custom 404 Handler vs Axon 404