<p>Allows you te set a page to be used as the 404 page. In order for the plugin to work you need to make some modifications to the <code>404.php</code> file in your theme. I set it this way so that the 404 page could be formatted to fit the theme, or can be set more dynamically.</p>
<p>For more information and sample code: http://www.reitzdesigns.com/2010/08/dynamic-404-page-wordpress-plugin/</p>
<p>Although this plugin will work with WordPress 2.8, it’s better suited for version 3.x.</p>


Dynamic 404 Page

Allows you to select a page to use as the content of your 404 page.

Konrad Chmielewski

<p>Welcome to WP 404 Auto Redirect to Similar Post!</p>
<p>This plugin automatically redirect 404 pages to similar posts based on Title, Post Types & Taxonomies. If nothing similar is found, visitors will be redirected to the homepage or a custom URL.</p>
<h4>Features:</h4>
<ul>
<li>Automatically detect any 404.</li>
<li>Automatically search a similar post based on multiple factors:
<ul>
<li>Title</li>
<li>Potential Post Type</li>
<li>Potential Taxonomy</li>
</ul>
</li>
<li>If nothing similar is found, set your Fallback Behavior:
<ul>
<li>Redirect to homepage</li>
<li>Redirect to a custom URL</li>
<li>Display the default 404 page</li>
</ul>
</li>
<li>Choose the redirection HTTP header status:
<ul>
<li>301 headers</li>
<li>302 headers</li>
</ul>
</li>
<li>Exclude Post Types from possible redirections.</li>
<li>Exclude Taxonomies from possible redirections.</li>
<li>Exclude Posts based on a custom post meta.</li>
<li>Exclude Terms based on a custom term meta.</li>
<li>Display the Debug Console instead of being redirected (Admin).</li>
<li>Preview possible redirection from the administration panel.</li>
</ul>
<h4>*New* Features:</h4>
<ul>
<li>Expose ‘WP-404-Auto-Redirect’ headers on 404 pages. (Admin).</li>
<li>Log redirections in the /wp-content/debug.log file.</li>
<li>Create your own search engines logic.</li>
<li>Create your own search engines groups & fire sequence.</li>
</ul>
<h4>*New* Engines & Groups:</h4>
<p>WP 404 Auto Redirect to Similar Post 1.0 introduces the concept of engines and groups which let you customize your own searching & matching logic. The plugin comes with 5 engines and 1 default group out of the box!</p>
<p>Default Group Engines:</p>
<ol>
<li>
<p>Fix URL<br />
Find and fix common URL mistakes.</p>
</li>
<li>
<p>Direct Match<br />
Search for a Post that perfectly match keywords.</p>
</li>
<li>
<p>Search Post<br />
Search for a similar Post.</p>
</li>
<li>
<p>Search Term<br />
Search for a similar Term.</p>
</li>
<li>
<p>Search Post: Fallback<br />
If a Post Type is set in the WP Query, redirect to the Post Type Archive.</p>
</li>
</ol>
<h4>But Also:</h4>
<ul>
<li>Easy to Install / Uninstall.</li>
<li>No useless data saved in Database.</li>
<li>Blazing Fast Performance.</li>
</ul>
<h4>Compatibility:</h4>
<p>WP 404 Auto Redirect to Similar Post is 100% compatible with all popular manual redirection plugins:</p>
<ul>
<li><a href="https://wordpress.org/plugins/redirection/" rel="ugc">Redirection</a></li>
<li><a href="https://wordpress.org/plugins/simple-301-redirects/" rel="ugc">Simple 301 Redirects</a></li>
<li><a href="https://wordpress.org/plugins/seo-by-rank-math/" rel="ugc">RankMath Redirections</a></li>
<li><a href="https://yoast.com/wordpress/plugins/seo/redirects-manager/" rel="nofollow ugc">Yoast Redirections</a></li>
<li>etc…</li>
</ul>
<p>If you use one of them, but missed a manual redirection and a 404 is about to be displayed, WP 404 Auto Redirect to Similar Post will cover you.</p>
<h3>Reviews</h3>
<p>They talk about us! 🙂</p>
<ul>
<li><a href="https://sebastienpierrepack.com/plugins-corriger-404-wordpress/" rel="nofollow ugc">Quels plugins utiliser pour corriger les erreurs 404 sous WordPress ?</a></li>
<li><a href="https://www.formget.com/404-redirect-wordpress-plugins/" rel="nofollow ugc">6+ 404 Redirect WordPress Plugins 2018 (Free and Paid)</a></li>
<li><a href="https://uproer.com/articles/best-seo-plugins-wordpress/" rel="nofollow ugc">12 Best Free SEO Plugins for WordPress</a></li>
<li><a href="https://wpstuff.org/plugins/recommended-plugins-for-wordpress/" rel="nofollow ugc">Recommended Plugins for WordPress</a></li>
<li><a href="http://blogingenuity.com/top-wordpress-plugins-i-cant-do-without/" rel="nofollow ugc">Top WordPress Plugins I Can’t Do Without</a></li>
<li><a href="http://bhaaratham.com/permalink-finder-plugin-sanitize_url-is-deprecated/" rel="nofollow ugc">Permalink Finder Plugin is deprecated</a></li>
<li><a href="https://www.seosatu.com/optimalkan-seo-dengan-halaman-404/" rel="nofollow ugc">Membuat halaman Error 404 menjadi SEO friendly</a></li>
<li><a href="https://www.littlemissgemtravels.com/ultimate-guide-to-starting-a-travel-blog/" rel="nofollow ugc">The Ultimate Guide to Starting a Travel Blog</a></li>
<li><a href="https://sayoho.com/80-best-wordpress-plugins-for-2018/" rel="nofollow ugc">80  Best WordPress Plugins for 2018</a></li>
</ul>


WP 404 Auto Redirect to Similar Post

This is, THE MOST "must have" plugin I've ever found.

a must plugin

Automatically Redirect any 404 page to a Similar Post based on the Title Post Type & Taxonomy using 301 or 302 Redirects!

Dynamic 404 Page vs WP 404 Auto Redirect to Similar Post