DiagnoSEO.com

<p>DiagnoSEO is the ultimate SEO plugin for WordPress in 2025. It includes all features you need to optimize your WordPress website and rank better in search engines. Moreover, it’s the most lightweight and fastest SEO plugin on the market in 2025 (optimized for Core Web Vitals). It’s the fastest SEO plugin according to WP Hive tests. Use the best SEO plugin and boost your organic rankings, traffic, and sales!</p>
<p>Key SEO features:</p>
<ul>
<li>Custom meta title text (essential for SEO)</li>
<li>Custom meta description text</li>
<li>Meta tags templates</li>
<li>Google snippet preview</li>
<li>Custom rel canonical URL</li>
<li>Meta robots control</li>
<li>Optimization for multiple related keywords</li>
<li>Advanced Schema.org settings (review, product, event, etc.)</li>
<li>Breadcrumbs (schema and HTML)</li>
<li>Easy to insert web analytics tracking code (e.g. Google Analytics or Google Tag Manager)</li>
<li>Social settings and previews</li>
<li>Useful SEO checkpoints</li>
<li>XML Sitemap</li>
<li>Feature to redirect attachment page links to image file</li>
</ul>
<p>Unique SEO features:</p>
<ul>
<li>Focus keyword placement checkpoints</li>
<li>Content analyzer checkpoints</li>
<li>Multiple related keywords checkpoints</li>
<li>Advanced SEO settings (you can’t find them in the other SEO plugins)</li>
<li>Lightweight code (less than 100KB)</li>
<li>Minimal usage of memory and database (optimized for Core Web Vitals)</li>
<li>Unique SEO features (used by SEO experts)</li>
<li>Live SEO score</li>
<li>Great UX</li>
<li>Easy to run and customize</li>
<li>Easy to import data and switch from popular SEO plugins (you can import data from Yoast SEO, Rank Math, SEOPress, and many more)</li>
<li>Many many more unique features.</li>
</ul>
<p>Pro SEO features:</p>
<ul>
<li>Related keywords suggestions (data based on real search results analysis and TF IDF algorithm)</li>
<li>Unlocked advanced and useful content quality checkpoints (data based on real search results analysis)</li>
<li>Same as schema.org for better social media accounts connections</li>
<li>LocalBusiness schema.org</li>
<li>Redirections (301, 302)</li>
<li>Google News sitemap (XML)</li>
<li>Multiple schema.org support</li>
<li>Table of contents block</li>
<li>Related posts widget</li>
<li>Featured posts widget</li>
<li>SEO Categories widget</li>
<li>SEO Categories widget for WooCommerce</li>
<li>Advanced WooCommerce metadata support</li>
<li>Anchor text control on posts lists (you can control anchor text on your blog page)</li>
<li>Affiliate link hider (better solution than rel nofollow)</li>
<li>Internal linking suggestions (data based on real search results analysis)</li>
<li>Option to change all external links to nofollow (Multisite supported)</li>
<li>IndexNow support (for super-fast indexation in Bing and Yandex)</li>
</ul>
<p>ChatGPT integration – GPT-3-Turbo or GPT-4 API – technology from OpenAI company (available only in Pro version):</p>
<ul>
<li>Generate or improve metadata based on AI (artificial intelligence) and best SEO practices</li>
<li>Generate SEO-friendly content directly in WordPress editor based on settings</li>
<li>Generate comments based on settings</li>
</ul>
<p>The plugin was created based on over 15 years of experience in SEO and WordPress.</p>
<p><a href="https://diagnoseo.com/wordpress-seo-plugin/" rel="nofollow ugc">WordPress SEO plugin – read full features list and details</a></p>
<p>The plugin includes a unique content analyzer and keyword placement checkpoints.</p>
<p>Optimize your posts and pages for the best SEO performance!</p>
<p>Switch your SEO plugin to DiagnoSEO and feel a positive difference!</p>


DiagnoSEO On-page SEO

DiagnoSEO is simply the best SEO plugin for WordPress. It's the most lightweight (less than 100KB) and fastest plugin on the market (optimized for Core Web Vitals). At the same time, it's loaded with useful and unique SEO features. Moreover, it has got the most advanced content analyzer and the most accurate SEO checkpoints for the focus keyword placement. It's the first SEO plugin that supports the IndexNow. Use DiagnoSEO plugin for WordPress and rank higher in search engines!

The Best SEO Plugin for WordPress


It’s very lightweight and easy to set up. Thank you. 


Easy to Use and Setup

Powerful and lightweight SEO plugin for WordPress. The best solution on the market in 2025.

SeoMix

Daniel Roch

SEOKEY

<p>SEOKEY’s goal is simple: <strong>to make SEO easier for everyone</strong>.</p>
<p><strong>New in SEOKEY 2.0:</strong> enhanced keyword menu and ALT Editor, OpenGraph and Twitter Card Data</p>
<h3>SEOKEY: the simplest and most effective SEO plugin</h3>
<p>SEOKEY tells you what you need to do next to boost your SEO! Discover our genuine SEO audit tool, our powerful advice for each content, our automatic SEO optimizations and our easy-to-use settings.</p>
<p>Since 2008, we have been improving our SEO expertise for all types of websites: B2C or B2B, for small websites or large international corporations. When it comes to WordPress, we made a straightforward observation: <strong>current SEO plugins are too complex, they don’t guide users in their next actions, and they have a lot of technical SEO weaknesses</strong>.</p>
<p>SEOKEY is the <strong>all-in-one plugin to rank higher in search engine, audit your content, and determine the NEXT action you should take</strong>.</p>
<p>And our SEO plugin contains everything you need to manage your SEO: meta tags, redirects, alt editor, and much more. With the <a href="https://www.seo-key.com" rel="nofollow ugc">SEOKEY PRO plugin</a>, go even further with an enhanced audit, Google bot 404 monitoring, and Search Console connection.</p>
<h3>Why SEOKEY is different?</h3>
<p>We give you all the keys to succeed in Search Engines :</p>
<ul>
<li>A <strong>global SEO audit tool</strong> for WordPress with practical SEO advice and contents analysis</li>
<li><strong>Automatic SEO technical optimizations</strong> without frustrating options</li>
<li>A complete <strong>SEO toolbox</strong> (redirections, image ALT editor, etc.)</li>
<li>A really <strong>easy-to-use interface</strong></li>
<li>All <strong>essential SEO features</strong>: Title, Meta Description, Canonicals, Open Graph and Twitter Card data, Head cleaning and much more</li>
</ul>
<h3>WordPress SEO audit</h3>
<h4>Global SEO audit for WordPress</h4>
<p>There is no point in getting tips on a single content if you don’t have the whole picture. With SEOKEY, you can <strong>audit all your content in one go</strong> to improve your visibility in Google and other Search Engines!</p>
<p>You can then easily consult all your SEO issues, or see at a glance which content is causing the most problems.</p>
<p>Our audit module is unique because we are the only SEO plugin to analyze 100% of your content, prioritizing URLs and issues to be resolved.</p>
<h4>Advice with real SEO data in SEOKEY PRO</h4>
<p>With PRO version, we go even further with a more detailed analysis of all contents: we give you a <strong>main directive based on real traffic data</strong>: optimize, change the keyword to target, do nothing, wait, etc.</p>
<p>SEOKEY PRO is the only SEO plugin providing a global SEO audit and contents analysis based on real trafic data!</p>
<h4>Individual SEO audit and content analysis for each content</h4>
<p>When you edit a specific content in WordPress, we also provide you with a full SEO content analysis. You will know what you ned to fix.</p>
<p>With PRO version, we also display your SEO data for each content: clics, impressions and visible keywords count</p>
<h3>Automatic SEO technical optimizations</h3>
<p>In WordPress, many SEO optimizations should be active by default. This is our belief as SEO experts since 2008. So why would we force you to check and fill in some options when they should always be active?</p>
<p>That’s why <strong>SEOKEY automatically deploys SEO improvements without any click</strong>: we clean your HTML , we disable date archives, we redirect attachment pages, we convert 404 errors on old cache files to 410 headers, and so on.</p>
<p>Need more information about it? Check here all our <a href="https://www.seo-key.com/features/optimizations/" rel="nofollow ugc">SEO optimizations</a></p>
<h3>Easy-to-use interface for better WordPress SEO</h3>
<p>Unlike other SEO plugins, SEOKEY’s interface is by far the simplest one. We’ve removed all unnecessary options, and simplified the ones that will really improve your visibility.</p>
<p>The result: you can configure and use SEOKEY much faster than with any other SEO plugin.</p>
<p>With our global audit and our individual content analysis, you’ll be able to correct all your content immediately!</p>
<h3>SEO toolbox (redirections, images ALT editor, etc.)</h3>
<p>SEOKEY provides you with all basic features needed in SEO, without installing third-party plugins or the need to upgrade to the PRO version. Our SEO plugin offers a complete WordPress SEO toolbox:</p>
<ul>
<li>easily manage your <strong>301 redirects</strong></li>
<li>an <strong>alternative text editor</strong> to modify them all in one place (and we use these new ALT texts to fix images without one within your contents)</li>
<li>100% automatic generation of your <strong>schema.org markup</strong> (Local Business, Organization or Person, Breadcrumbs, Website)</li>
<li>we create <strong>new management pages for your Post Type archives</strong> if you have any (for example, your shop product page with Woocommerce)</li>
<li>fast and reliable XML sitemap files for all Search engines (Google, Bing and the others). We physically create these files to boost crawling and indexing speed!</li>
</ul>
<h3>SEOKEY WordPress SEO Plugin: PRO version will take you even further!</h3>
<p>With SEOKEY PRO, our audit is more in-depth with a much more in-depth analysis of your content.</p>
<p>In just a few clicks, create and connect to Google’s search console to retrieve your real traffic data and automatically submit your sitemap files.</p>
<p>SEOKEY PRO also improves our advice for each content with data from your Search Console telling you exactly what you need to do!</p>
<p>With this enhanced version, we will also warn you in case of <strong>404 error</strong> detected by Google or <strong>when WordPress generates an automatic 301 redirect</strong> behind your back. With a simple clic, you can fix them!</p>
<h3>Our SEO plugin summarized ?</h3>
<ul>
<li><strong>SEOKEY guides you in your SEO actions with a powerful global SEO audit and individual content analysis</strong></li>
<li><strong>SEOKEY automatically corrects many WordPress SEO defects</strong></li>
<li><strong>SEOKEY is the easiest SEO plugin for WordPress</strong></li>
<li><strong>SEOKEY has practical tools for everyday use</strong></li>
</ul>
<h3>Need more info about our WordPress SEO plugin?</h3>
<p>Check our websites:</p>
<ul>
<li>in english <a href="https://www.seo-key.com" rel="nofollow ugc">SEOKEY</a></li>
<li>in french <a href="https://www.seo-key.fr" rel="nofollow ugc">SEOKEY en français</a>.</li>
</ul>
<p>WordPress SEO has never been so easy!</p>


SEOKEY – Powerful SEO plugin with Expert Insights and SEO Audit


Great plugin, simple to use, with great help, guides & infos. Audit is THE key and game-changer functionality. Great support as well.


Finally a SEO plugin for everybody!


I am very satisfied with SEOKey. The plugin is didactic and guides us step by step to optimise the content of our websites. I particularly like the tool that lets you audit your website: SEOKey gives you all the advice you need to correct what's wrong. I now recommend SEOKey to all my customers.


A very good SEO plugin


Clairement plus simple que les autres plugins utilisés précédemment. L'outil de mise en place est didactique et permet d'activer les bons paramètres en moins d'une minute.Après l'activation, un diagnostique est effectué pour savoir ce qu'il reste à améliorer "concrètement" à la main, dans le contenu (les étapes que seul un humain peut faire).Bref, je recommande.


Didactique et plus simple que les autres


I think this is the first and only plugin that really understand what your site needs, and it does with the softness of a baby's skin: you touch it, you love it!


Very light and useful


For once an SEO plugin is not a gas factory, everything is well explained, it’s a pleasure! Special mention for the very well explained audit generation.


Super easy to use 🤩


SEOKEY est une extension très efficace qui fonctionne parfaitement sur mes sites. Je ne peux que vous la recommander !


Une excellente extension SEO !

Improve SEO rankings with a powerful SEO Audit, automatic optimizations and Expert Insights. SEOKEY is the easiest and most powerful SEO plugin!

DiagnoSEO On-page SEO vs SEOKEY – Powerful SEO plugin with Expert Insights and SEO Audit