The #1 WordPress SEO Plugin

DiagnoSEO is the fastest AI-powered all-on-one WordPress SEO plugin on the market. Apart from all basic SEO features, it has unique SEO features and checkpoints. It’s far better than other SEO plugins and more powerful than you think. Results confirmed on brands from the Fortune 500 list. Unlock the potential of your WordPress website.

  • Fastest

  • AI-powered

  • Feature-rich

Rank higher in search engines

Enhance your website’s SEO effortlessly and attract more visitors with the fastest WordPress SEO plugin.

Easy configuration

Easy to setup
and configure

Plugin is easy to setup and configure. Just install and activate and you are ready to go.


and friendly support

Plugin is well supported. Get help from experienced and super friendly support team.

Unlock access

Get access to
online SEO tools

Use external advanced SEO tools for audit, keyword placement, and competitors analysis.

Be a step ahead

Be a step ahead
of your competitors

Get unique and powerful features that are simply not available in other SEO plugins.

Enterprise-quality SEO features now are available for literally every WordPress website! DiagnoSEO is a modern SEO plugin for WordPress. It was created based on over 15 years of experience in the SEO industry from startups to Fortune 500 corporations.

Switch your SEO plugin to DiagnoSEO and feel the positive difference in performance, UX, and rankings. DiagnoSEO is a brand new and revolutionary SEO plugin that has better code and features than the other plugins on the market. It is also the fastest WordPress plugin according to WP Hive and PluginTests. Try it now for free and boost your search visibility easily!

What you can do with DiagnoSEO WordPress SEO plugin?

  • Improve rankings in organic search engine results (Google, Bing, etc.) – use keyword placement and content analyzer tools to optimize pages for important SEO factors.
  • Get more clicks from organic search engine results – boost CTR in Google or Bing by improving your title, description and don’t forget to enable rich snippets (
  • Get more conversions or sales – Improve performance of your website and reduce the bounce rate. DiagnoSEO has more lightweight code and it uses less database queries than the other SEO plugins.
  • Be one step ahead of your competitors – use unique SEO features available only in DiagnoSEO plugin (fatured posts, deeplink hider, detailed seo audit and many, many more). We are constantly monitoring the SEO industry and releasing new features or improvements in regular updates.
  • Save money and use Pro on unlimited number of websites – get Pro version for just $29 (limited time offer for early orders). You can use it on unlimited number of websites. It’s the best offer available on the market today.

Key SEO features – everything you need for SEO

The fastert

The fastest plugin
on the market

DiagnoSEO is the fastest SEO plugin according to WP Hive and PluginTests.


The most
lightweight plugin

DiagnoSEO is the most lightweight plugin based of number of lines of code and zip file size.

Unlock access

Use on unlimited

You can use Pro version on unlimited number of websites. Save money!

Be a step ahead

Don’t overpay and
save money

DiagnSEO offers more features for better prices. Don’t overpay and save money.

Be a step ahead

AI-powered and
unique features

Get unique and powerful features that are simply not available in other SEO plugins.

Be a step ahead

Better features for
better SEO

DiagnoSEO pays attention to details. We believe that the sum of improvements makes a difference.

Be a step ahead

Powerful content

Get access to the most powerful content analyzer on the market and see your content score.

Be a step ahead


Get access to the most advanced keyword placement checkpoints with direct tip to improve your SEO.

Discover why DiagnoSEO is #1 WordPress SEO plugin

  • More lightweight than most popular SEO plugins on the market (we compared size of zip file downloaded directly from repository)
  • Better code and performance than on any other SEO plugin (we compared number of database queries on single post on Twenty Nineteen theme using Query Monitor plugin).
  • Better UX – easy to manage and customize metadata and separate sticky panel for content analysis and keyword placement checkpoints.
  • Easy to install, use and customize – just install and activate the plugin. Default settings are using best SEO practices so you don’t need to change in most cases. If you want to customize the settings the you can find all options well organized in the administration panel.
  • Unique SEO Features – you can find SEO features that are not available in any other plugin on the market (e.g. SEO Categories widget, affiliate deeplink hider, anchor text control on post lists, advanced content quality and keyword placement checkpoints, HTML sitemap Gutenberg block, table of contents Gutenberg block, post rating and many more).
  • Improved SEO Features – for example Google Snippet preview works better than on the other plugins – it’s more accurate than ever before. Content analyzer checks for more important SEO related details. Breadcrumbs passes WAI-ARIA standards. XML Sitemaps uses native support of WordPress (implemented in WP 5.5.).

Core SEO

DiagnoSEO WordPress SEO plugin handles different aspects of SEO so that you can ensure the overall website optimization meets the latest and highest enterprise standards.

Meta tags

Google snippet preview


Keyword placement

AI related keywords

AI content analyzer


Internal linking

XML and HTML Sitemaps

Open Graph

Why it’s worth to buy DiagnoSEO Pro WordPress plugin?

  • Save money – get better price for Pro – pro version is affordable for everyone. Now only $59 instead of $89 (30$ off – limited time offer).
  • Use Pro on unlimited websites without extra cost – save money if you use the plugin on multiple websites.
  • Get access to addidional online SEO tools – use external advanced SEO tools for audit, keyword placement and competitors analysis.
  • Be a step ahead of your competitors – Get enterprise-quality SEO features. DiagnoSEO offers unique features that are simply not available in other plugins (even in Pro versions), e.g. affiliate deeplink hider, SEO categories widget, and post title control on post lists.

Reasons why DiagnoSEO (WordPress SEO Plugin) is better than the other SEO plugins

In short, DiagnoSEO (WordPress SEO plugin) offers improved SEO features in comparison to other SEO plugins and adds new SEO features that don’t even exist in other SEO plugins. It also eliminates bloat and offers improved UX and better performance. Moreover, many of the features that are usually paid for in other SEO plugins are for free in DiagnoSEO.

  • Best content analyzer on the market – more advanced checkpoints related to content quality and SEO.
  • Most accurate Google Snippet preview – separate preview for mobile and separate for desktop. We created the most accurate snippet preview tool on the market. We eliminated all the issues from other tools of this type. Use the most accurate snippet preview tool.
  • Optimize the page for up to 5 keywords – not limited to just one keyword like on other popular plugins.
  • Better metadata control (title, description, URL slug, robots, rel canonical) with colored progress bars and tracking width in pixels and number of signs. We re-engineered the key SEO features and made them super user-friendly and easy to use and understand. This plugin is for everyone (from beginners to SEO experts). If you are new to SEO – just use the default settings. If you are an SEO expert then customize the things you want and as you want (e.g. meta templates, meta robots for a specific type of posts, or XML sitemaps).
  • Content analyzer – with unique and detailed SEO checkpoints you can’t find in other plugins. Get in-depth content analysis for the most important SEO factors.
  • Keyword placement with unique and detailed SEO checkpoints you can’t find in other plugins. Up to 5 keywords supported (not only one like on the other plugins).
  • Breadcrumbs with schema support. Despite the other SEO plugins on the market our breadcrumbs are fully accessible and pass WAI-ARIA strict standards and best practices.
  • Advanced Schema support with the support of 19 schema types and growing.
  • Sitemaps with optional last modified date. Despite the other SEO plugins we are using core WordPress features that were added on WP 5.5. This means that there are fewer code and server resources needed to generate a sitemap on your server. This means that your website will work faster.
  • Related keywords based on TF IDF algorithm and competitors analysis from top 10 Google search results (Pro)
  • Internal linking suggestions (Pro) – based on AI content analysis and existing pages.
  • Option to add nofollow to all external links – works also on Multisite.

Full list of features

  • Redirect attachment page links to an image file. This helps to prevent tiny content from getting indexed.
  • Option to insert any code in header, footer, body, e.g.: Google Analytics, Clicky, StatCounter, Google Tag Manager, Google Search Console verification code, and many more.
  • Website schema support with „same as” for social media accounts, Wikipedia, etc.
  • Organization or Person schema support. You can choose to use schema for Organization (if your website represents a company) or Person (if your website represents a person).
  • LocalBusiness schema (Pro) – make your business better visible in Google.
  • Google Knowledge Graph (Pro) – get additional exposure in Google Search results.
  • 19 additional schema types for posts or pages (including Article, BlogPosting, NewsArticle, etc.)
  • Option to import metadata from the most popular plugins (including Yoast, All in One SEO, Rank Math, SEOPress, The SEO Framework, and SlimSEO)
  • Open Graph support for Facebook and Twitter
  • Preview of Facebook and Twitter posts and the possibility to edit the post details. This feature despite other most popular plugins is in the free version.
  • Option to exclude post/page from archives and home page post list (for example post that you don’t want to link from post lists)
  • Option to exclude post/page from search results (for example „thank you page”)
  • Variables support (title, excerpt, separator, site, tagline, current year, etc.)
  • No follow and sponsored attributes support
  • Templates for metadata for title and description for each post type
  • WooCommerce Templates for metadata for title and description (page, category, etc) – Pro
  • AMP ready – fully compatible with the official AMP plugin

Unique Pro features

  • Fastest SEO plugin on the market – according to WP Hive and PluginTests memory usage in DiagnoSEO WordPress plugin is at the lowest level in comparison to other plugins like (Yoast, Rank Math, All in One SEO, SEOPress, The SEO Framework or even SlimSEO)
  • Anchor text control – Control the anchor text on internal links on post lists. Use our theme if your theme doesn’t support it yet. It’s unique feature available only on DiagnoSEO.
  • Affiliate deeplik hider – It’s a better solution than nofoollow if you really want to hide link from bots and better control link juice flow. Perfect for hiding affiliate links. It’s unique feature available only on DiagnoSEO.
  • SEO Categories widget for posts or WooCommerce products. It’s a unique widget that allows for better optimization of the category links for semantic relevance, link juice flow, and usability. It’s unique feature available only on DiagnoSEO.
  • Access to online SEO tools (SEO audit with over 200 checkpoints, competitors analysis based on Google top 10 search results, keyword placement, etc.). No need to use your server resources (memory, processor, database) like in other plugins. It’s unique feature available only on DiagnoSEO.
  • Powerful content quality checkpoints – more detailed and accurate than in other SEO plugins and tools. Fix the issues and improve the rankings.
  • Ultimate keyword placement checkpoints – more detailed and accurate than on other SEO plugins and tools. Fix the issues and boost the rankings before your competitors will do.
  • Table of contents – this Gutenberg block is a great way to improve UX and get additional links in the snippet.
  • Related posts widget – a great way to improve internal linking. Internal links from this widget are thematic and based on categories and subcategories.
  • Featured posts widget – exposure cornerstone or pillar pages and improve internal linking. Get more link juice to the most important pages.
  • Multiple per post or page – use multiple schemas on one single post or page. For example Article and Product review at the same time.
  • Website crawl with 404 detection and 50 other SEO ranking factors (duplicates of title, description, etc.).
  • HTML sitemap – generate an HTML sitemap easily to help with the indexation of your pages.
  • Semi-automatic internal links – create a list of keywords with URLs and DiagnoSEO will place links automatically inside your articles in SEO friendly way.
  • IndexNow feature allows you to index pages in Bing and Yandex very quickly and efficiently.
  • Post rating feature with schema allows you to have a rich snippet with stars in search results.
  • reviewedBy schema support – feature to boost credibility and enhance E-A-T by showing that content is expert-verified. It’s unique feature available only on DiagnoSEO.

Powerful AI SEO features

  • AI comments generator allows you to generate comments for your posts easily.
  • AI article generator allows you to generate high quality articles.
  • AI excerpt generator allows you to generate excerpt easily for your posts.
  • AI metadata generator allows you to generate title and description for your posts.
  • AI internal links allows you to place thematic internal links easily.
  • AI image alt generator allows you to easily add alt tag for images.

World-Class Performance – The Fastest SEO plugin on the market

The smallest size of zip file

Size of the zip file (less is better). We compared the size of the ZIP file of DiagnoSEO to other popular SEO plugins from DiagnoSEO was a clear winner (got the most lightweight ZIP file).

Minimal number of database queries

A number of database queries on default single post (less is better). Report based on Twenty Nineteen theme and Query Monitor.

We compared a number of database queries from DiagnoSEO to other popular SEO plugins from and DiagnoSEO was a clear winner (got the best performance).

The lowest number of lines of code

According to data from DiagnoSEO uses the smallest number of lines of code while having the same or even more features. It can mean that code quality is of higher quality (better thought and well optimized).

Performance comparison

Comparison of the code quality and performance factors based mainly on data from and

DiagnoSEO Yoast
Memory usage 61.33 KB >1 MB
Change of speed of loading website after plugin activation -0.053 s +0.145 s
Size of ZIP file <140 KB 3.9 MB
Number of lines of code <6 300 67 332
The fastest SEO plugin on the market

Free features comparison

Comparison of most frequently used SEO features and a couple of chosen pro features.

DiagnoSEO Yoast
Metadata templates with variables
Snippet preview
Open Graph support
Content analysis
Redirect attachment page links to image file
Breadcrumbs with WAI ARIA support
Keyword placement checkpoints
Social media preview
Schema generator
Checkpoint for multiple related keywords
Hide social links from bots
Web analytics code support
Content statistics
Number of SEO checkpoints 35+ <35
Possibility to add/edit category description with HTML formatting
Possibility to import data from popular SEO plugins

Pro features comparison

Comparison of chosen most useful and common pro features.

DiagnoSEO Yoast
Anchor text control on posts lists (theme needs to support this feature)
Post rating with stars and schema
Affiliate deeplink hider – a better solution than nofollow to avoid link juice leaks
Table of contents widget
Table of contents block
Access to super detailed and advanced SEO audit tool (200+ factors)
Optimization for multiple keywords (not limited to only one focus keyword)
SEO Categories widget
SEO Categories widget for WooCommerce
Redirections (301, 302)
Google News sitemap (XML)
Video sitemap (XML)
Advanced content quality checkpoints (based on data from real search results)
LocalBusiness schema
Internal linking suggestions (based on data from real search results)
Related posts widget
Featured posts widget
Access to competitors analysis SEO tool (using AI and real search data)
Website crawl tool access (e.g. 404 detects and 20 more factors)
Multiple support
Date modified support
Last modified support
reviewedBy schema (for E-A-T)
Advanced WooCommerce metadata support
HTML Sitemap block
“Same as” for better social media account connections
Option to change all external links to nofollow (works also on Multisite)
Option to change XML sitemap name for better data protection
One-click automatic updates
Dedicated premium support

Pro AI features comparison

Comparison of chosen AI features from Pro version.

DiagnoSEO Yoast
AI comments generator
AI excerpt generator Soon
AI metadata generator Soon
AI content generator Soon
Related keywords (NLP) suggestions (based on AI)


Comparison of bonuses.

DiagnoSEO Yoast
Discount for Multi Premium WordPress Theme and Website Builder
Complete Multi integration
WordPress SEO Course
Access to AI-Powered SEO and content marketing tools

Price and license type

Comparison of prise and license type.

DiagnoSEO Yoast
Price per year $59 USD €99 EUR
License type Unlimited websites Per website
Affordable for everyone


Different users worldwide use DiagnoSEO in daily SEO routines. Find out how it helps them.


I am in the SEO industry for over a decade. In the meanwhile, I tested all the most popular plugins on the market. What I can say is that DiagnoSEO has the best code, UX and it includes all the SEO features that are really important. No bloats and not-needed features. At the same time, it includes features that other plugins don’t have.

AdamSenior SEO Specialist


DiagnoSEO helps me to create content optimized for search engine end users. I like the live SEO checklist and related keywords suggestions.



The support of the DiagnoSEO team is amazing. They helped me to install and configure the plugin. My rankings improved recently. Thank you!

ArturWeb Developer


After implementing schema using schema generator from DiagnoSEO my rankings improved significantly. Great plugin that I can recommend 100%.



I found deep link hider very useful to hide my affiliate links from search engines bots. Finally, there is a plugin with these unique features. I switched to DiagnoSEO and really felt the difference in the performance of my websites. No longer bad pages in my Google Search Console reports.

DanielAffiliate Marketing Expert


  • Can I use DiagnoSEO on more than one website?

    Yes, that’s one of our advantage over competitors. You can use the Pro website on as many websites as you want.

  • Is DiagnoSEO better than other SEO plugins on the market?

    Yes, Diagnoseo is the best plugin for WordPress you can find. The reasons are better performance (fewer database queries), better content analysis (more checkpoints) and keyword placement checkpoints, better UX, and less size of ZIP file with the plugin (more lightweight code). DiagnoSEO plugin has also unique features (e.g. AI comments generator, affiliate link hider, anchor text control on post list, SEO categories widget and many more).

    Moreover for websites that use DiagnoSEO Pro plugin we provide additional access to the most detail-oriented audit SEO tools on the market.

  • How do I get support?

    Please write to We do offer support for both free and Pro users. We are always happy to help. For owners of Pro licenses, we can also provide additional SEO advice and tips.

  • Can I cancel my subscription anytime?

    Yes, you can cancel the subscription anytime you want.

  • What payment options do you accept?

    We accept PayPal, MasterCard, or Visa.

  • What happens if I am not satisfied after purchase?

    Please reach out to our support team with feedback. Based on your feedback we will do our best to make you satisfied with the purchase as we guarantee 100% satisfaction.

  • Will I keep my settings when upgrading to the Pro?

    Yes, all settings will work and look as before. DiagnoSEO Pro will just extend the settings, features, and checkpoints for content analysis and keyword placements. You will get more features and unblock the locked or hidden options.

  • What can I expect in future releases and updates?

    We are working hard every day to make DiagnoSEO better. You can expect regular updates (at least once a month). We will include new SEO features, tools, checkpoints, improvements, and fixes. We are passionate about SEO so you can be sure that DiagnoSEO won’t miss anything important in the fast-changing technical or on-page SEO industry.

  • Do you offer a discount on renewals?

    Yes, if you were lucky to purchase DiagnoSEO (WordPress SEO plugin) with a discount then the discount will also renew. You will save money every year. Important thing is that if you cancel the subscription then it’s not possible to renew the discount again.

Get Enterprise Quality
SEO Plugin for WordPress

Grow your business with a best-in-class SEO plugin for WordPress.

Get Pro version for $59 $89