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.
For more information and sample code: http://www.reitzdesigns.com/2010/08/dynamic-404-page-wordpress-plugin/
Although this plugin will work with WordPress 2.8, it’s better suited for version 3.x.

Dynamic 404 Page

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

Freemius

Lars Koudal

cleverplugins

Google Search Console tells you which keywords bring visitors to your site — but that data lives in Google’s dashboard, separate from the pages you edit in WordPress.
SEO Booster closes that gap. Connect Search Console once, import your keyword data, and see real search performance on every post, page, and taxonomy you edit. Turn GSC insights into actionable SEO tasks, automate internal linking across your site, and optionally use AI — powered by WordPress Connectors — to speed up content and image optimization.
Works alongside Yoast SEO, All in One SEO, and similar plugins — SEO Booster complements them with GSC-driven keyword intelligence, internal linking, and on-page analysis they typically do not provide.
Requires WordPress 6.8 or later.
<h4>AI with WordPress Connectors (optional)</h4>
Optional AI features use the WordPress Connectors system built into WordPress 7.0 or later. Set up your AI provider under Settings → Connectors in WordPress, then choose WordPress Connectors under SEO Booster → Settings → AI/LLM. GSC import, automatic links, and SEO analysis work fully without AI — leave it disabled if you prefer.
<h4>Free features</h4>
Google Search Console
<ul>
<li>Connect your site via OAuth; import 7, 30, or 90 days of keyword data with scheduled refresh</li>
<li>Searchable GSC Overview with filters for new or stale keywords, content usage, and position bands</li>
<li>Dashboard with 30-day trends, charts, top keywords, and period-over-period comparison</li>
<li>Weekly email reports with key metrics — all processed on your server, not sent to third parties</li>
</ul>
Keyword insights where you work
<ul>
<li>GSC metabox on posts, pages, taxonomies, and WooCommerce products</li>
<li>Admin bar keyword popup while browsing the frontend</li>
<li>Optional frontend keyword highlighting to see GSC terms in your content</li>
<li>Per-keyword history mini-charts and one-click re-analyze</li>
</ul>
Automatic internal links
<ul>
<li>Define keyword-to-URL rules; matching text in body content links automatically site-wide</li>
<li>WooCommerce products supported; works with major page builders (Gutenberg, Elementor, Beaver Builder, and more)</li>
</ul>
SEO Possibilities
<ul>
<li>On-page analysis with prioritized suggestions for titles, meta descriptions, headings, images, links, and more</li>
<li>GSC-based opportunities including low CTR, missing keywords, and keyword cannibalization warnings</li>
<li>Sitewide checks, bulk analysis from post lists, and optional SEO score admin columns</li>
<li>Auto-scan URLs discovered from GSC imports (configurable frequency)</li>
</ul>
AI-powered SEO (optional, WordPress 7.0+)
<ul>
<li>Uses WordPress Connectors — your AI provider is configured once in WordPress, not inside SEO Booster</li>
<li>Metabox suggestions, WooCommerce product SEO, and comprehensive audits</li>
<li>AI writing outline with generate-article-from-outline workflow</li>
<li>Media Library bulk alt text and title generation</li>
<li>Image metadata batch processing (vision-capable connector required for image analysis)</li>
</ul>
Tools
<ul>
<li>Image metadata scanner and AI batch fix — see Image metadata batch tool below</li>
</ul>
<h4>SEO Booster Pro</h4>
Upgrade at <a href="https://seoboosterpro.com" rel="nofollow ugc">seoboosterpro.com</a> for:
<ul>
<li>404 and redirect monitoring — track broken URLs and redirects with a searchable admin report</li>
<li>404 summary in weekly email — top broken URLs when monitoring is enabled (Pro)</li>
<li>Autolink column — enable or disable automatic linking per post from the posts list and Quick Edit</li>
<li>Autolink status in GSC popup — see which keywords are auto-linked, or create links in one click from the keyword details view</li>
</ul>
<h3>Automatic Links</h3>
Automatically turn keywords in your content into internal links. Every time you write “contact us”, it can link to your contact page — no manual linking required.
Works with WooCommerce products and major page builders. See the <a href="https://seoboosterpro.com/docs/automatic-links/supported-page-builders/" rel="nofollow ugc">supported page builders list</a> for details.
<h3>Image metadata batch tool</h3>
Find and fix missing image metadata across your Media Library without opening each attachment one by one. Go to SEO Booster → Tools → Image metadata.
<ul>
<li>Scan JPEG, PNG, and WebP attachments for missing title, alt text, caption, or description; preview matches before you act</li>
<li>Generate with AI by analyzing the actual image file — choose which fields to apply; only checked fields are saved</li>
<li>Process in batches — selected images or every match in your library, with live preview while processing</li>
<li>Fail-safe — if the AI cannot verify an image, nothing is saved; the tool prefers empty fields over wrong alt text</li>
<li>Works without AI — run scans and review gaps even when AI processing is not configured</li>
<li>Requires vision-capable AI for generation via WordPress 7 Connectors; text-only connectors cannot analyze images</li>
</ul>
Learn more in the <a href="https://seoboosterpro.com/docs/" rel="nofollow ugc">SEO Booster documentation</a>.
<h3>Disclaimer</h3>
This plugin is not affiliated with, endorsed, or sponsored by Google. Google Search Console, Google APIs, and any related trademarks are the property of Google LLC. All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

SEO Booster

Google Search Console in WordPress: keyword insights, on-page SEO, internal links. AI via WordPress 7 Connectors.

Dynamic 404 Page vs SEO Booster