Overview
Plans & features
From the founders
Questions
Reviews

DiagnoSEO

Boost site traffic with a full-stack SEO, content marketing toolkit, and WordPress SEO plugin

One-time payment. Lifetime deal.

At this point, your SEO setup looks more complicated than the table setting at a fancy dinner party. (“Pretty sure half of these keywords are just decorative.”)

But getting the data you need to optimize for SEO often requires multiple tools, loads of overtime, and an open checkbook.

If only you could access dozens of user-friendly SEO and content marketing tools in one place—without going over budget.

Lucky for you, there’s DiagnoSEO.

TL;DR

Audit and monitor your website, research keywords and backlinks, and create SEO content with a full-stack toolkit

Optimize WordPress sites with an ultra-fast and lightweight SEO plugin that outperforms popular plugins like Yoast SEO

At-a-glance

Best for

Alternative to

Integrations

Features

Overview

DiagnoSEO is an SEO and content marketing toolkit that boosts site traffic, along with a powerful WordPress SEO plugin.

Personal SEO writing coach

The SEO Content Editor analyzes the top search results to audit, optimize, and generate Google-friendly content for you.

Optimize keyword placement, semantically related keyword usage, article length, keyword density, and structure
Whip up multilingual articles with headlines, subheadings, introductions, highlights, FAQs, summaries, and more—and bypass AI detection
Get internal linking suggestions and audit content for SEO, UX, and readability

Audit or generate SEO-optimized content that’s super easy to read—without getting flagged as AI.

Find opportunities with a detailed SEO audit

DiagnoSEO can identify critical issues, hidden opportunities, and low-hanging fruit to improve your search visibility.

Run a detailed page audit using 200+ checkpoints, including on-page SEO, off-page SEO, technical SEO, and essential best practices
Get SEO recommendations for peak SEO performance and generate white-labelled PDF reports for your clients

Identify what’s tanking your site’s SEO performance and troubleshoot like a pro.

Find keywords that drive traffic

You can also access live data from Google Autocomplete to discover the latest search trends and popular keywords.

Discover insights on search volume, cost per click, keyword difficulty, search intent, and trends
Filter, sort, copy, and export keyword results
Build a data-driven content plan that aligns with real-world search behaviors

Plan your content around real-world search trends and popular keywords.

All-in-one WordPress SEO Plugin

On top of all that, DiagnoSEO’s WordPress SEO plugin outperforms tools like Yoast SEO, All in One SEO, and Rank Math.

Get fundamental SEO features like schema markups, review snippets, meta tags management, content analyzer, and more
Access unique features like an affiliate deeplink hider, customizable XML sitemap filename, reviewedBy schema support, and more

Optimized for Core Web Vitals, DiagnoSEO’s WordPress plugin is ultra-fast and lightweight!

DiagnoSEO offers powerful SEO and content marketing tools as well as a lightning-fast WordPress plugin, so you can climb the SERPs on any budget.

Simplify your SEO strategy.

Get lifetime access to DiagnoSEO today!

Plans & features

Showing tiers 1 - 2 of 2

License Tier 1

$59

$1,548

License Tier 2

$199

$2,988

	License Tier 1 $59 $1,548	License Tier 2 $199 $2,988
Access	Lifetime access	Lifetime access
Diagnoseo Pro WordPress plugin sites	5	Unlimited
Advanced SEO audit
Advanced TF IDF tool
Advanced SERP analysis
Keyword ideas
Broken pages
Most linked pages
SEO audit tool
Extended SEO audit
SEO Content Editor with AI article generator (GPT-4o mini and GPT-4o Support) (and all future used AI models)
Competitors analysis / SERP analysis
TF IDF tool
Backlink checker
Keyword placement tool
Keyword research tools
Website monitoring
Snippet preview
SERP checker
HTTP request tool
Article outline generator
Diagnoseo Pro – The Ultimate WordPress SEO Plugin

60 day money-back guarantee. Try it out for 2 months to make sure it's right for you!

Deal terms and conditions: Lifetime access to DiagnoSEO. All future Basic (Tier 1) or Advanced (Tier 2) Plan updates. If Plan name changes, deal will be mapped to the new Plan name with all accompanying updates. No codes, no stacking—just choose the plan that’s right for you. You must activate your license within 60 days of purchase. Ability to upgrade between 2 license tiers while the deal is available. Ability to downgrade between 2 license tiers within 60 days of purchase. GDPR compliant. Only for new DiagnoSEO users who do not have existing accounts.

DiagnoSEO

Founder

SEO Expert

Founded

January 2019

Headquarters

Europe

Company size

1-10 employees

Product stage

Growth

Financial stage

Bootstrapped

Helpful links

Updates from DiagnoSEO

An update from DiagnoSEO

Posted Jan 2, 2025

Howdy, Sumo-lings! 👋

We’ve been actively listening to your feedback and working on some exciting changes to bring a special deal just for Sumo-lings. When crafting this offer, we aimed to strike that sweet spot. We wanted to keep our business sustainable while delivering as much value as possible to awesome Sumo-lings.

We’re finally ready to announce that we’ve improved and upgraded the deal by adjusting the limits and credits:

No more daily or monthly limits for all Tiers.

The new deal is credit-based.

For Tier 1: You’ll get a one-time allocation of 720 credits that never expire (equivalent to 12 months of credits from our existing Basic plan).

For Tier 2: You’ll get a one-time allocation of 2,400 credits that never expire (equivalent to 12 months of credits from our existing Advanced plan).

These updated conditions are already live on the deal page, and they apply to all existing Sumo-lings who have already purchased DiagnoSEO!

Why are these AppSumo-only conditions so special?

We’ve removed the usual limits and added a massive chunk of credits that never expire. We’re giving you 12 times more credits upfront than regular monthly subscribers receive. Normally, a user has to pay a subscription fee every month to keep using credits, and any purchased credits expire after a year. Subscribers also still need an active subscription to use the credits. But Sumo-lings don’t have to pay monthly fees, and they can use their credits whenever they want—no expiration date!

There’s also something cool to share: some tool features don’t require any credits at all. For example, live checkpoints in the Content Editor and the Snippet Preview are free to use. The WordPress SEO plugin doesn’t consume credits either!

More tools in the deal!

We’ve been working hard on our roadmap goals and just rolled out three new powerful tools for all tiers:

Website Visibility Checker – See how your domain or URL ranks in Google or discover top pages of your competitors. This tool is powered by a database of over 600 million SERPs across 90+ countries!

Keyword Generator – Discover keyword ideas using a database of over 7 billion Google keywords, including CPC, trends, keyword difficulty, and search intent.

Blog Post Idea Generator – Whip up BoFu (Bottom of Funnel), MoFu (Middle of Funnel), and ToFu (Top of Funnel) blog ideas in a flash. Perfect for brainstorming your next post that’ll support your money page!

With these updates, DiagnoSEO is more powerful than ever!

Stay tuned for more updates, and thanks for being part of the Sumo-ling family!

SEO Expert

A message from DiagnoSEO

Posted Oct 21, 2024

Hey Sumo-lings! 👋

I’m Adam, General Manager of DiagnoSEO, and I’m excited to introduce you our AI-powered, full-stack SEO and content marketing toolset with the fastest WordPress SEO plugin packed with out-of-the-box features to unlock higher rankings and quality traffic! 🚀

Who We Are

At DiagnoSEO, we’re all about making SEO simple and affordable. We saw how confusing and expensive SEO can be, so we created a tools that are powerful yet easy to use. Our platform combines cutting-edge AI with all the SEO tools you need in one place — from keyword research and content optimization to page audits and backlink checking. Additionally, we have developed the fastest WordPress SEO plugin, packed with outstanding AI-powered ✨ features.

Why We Built DiagnoSEO

After years of working in SEO, we realized that most tools has missing features or are either too complicated and too expensive for everyday users. We wanted to build something different: a complete SEO toolkit that offers clear insights and user-friendly design with affordable pricing. DiagnoSEO isn’t just about data. It’s about giving you the exact steps and tools you need to boost your site and grow your traffic and revenue. 🛠️

What Makes DiagnoSEO Stand Out

We’ve got the most complete and accurate SEO audit tool out there. It checks over 200 ranking factors, covering everything from on-page and technical SEO to performance, analytics, security, and more.

We’re the only all-in-one SEO toolset that also has its own WordPress SEO plugin. And it's packed with powerful, one-of-a-kind features like an affiliate deeplink hider, reviewedBy schema support, AI-powered comments generator, and SEO-friendly widget for nested categories.

Our WordPress SEO plugin isn’t just powerful - it’s the lightest and fastest on the market (according to WP Hive tests). The ZIP file is less than 150KB, and it only uses about 60KB of memory. A faster website means better Core Web Vitals, a smoother user experience, and more conversions.

Our SEO Content Editor doesn’t just focus on SEO. It’s also all about user experience and readability. We make sure your content meets top standards, flagging too long sentences, headings, and paragraphs, and even pointing out when there’s too much uppercase shouting and many more.

DiagnoSEO is your all-in-one SEO and content marketing toolset. Whether it’s about SEO audits, keyword research, backlink analysis, or writing, optimizing and planning content, you can handle it all right here. No need for other tools. Save time and money!

Exciting Updates on the Horizon

Everyday we are working on new features to make DiagnoSEO even better.

Want to see what’s next? Check our public roadmap: https://diagnoseo.com/roadmap/

Join Us! Let’s Grow Your Site Together! 🚀

Subscribe to our newsletter and follow us on social media to get exclusive updates, and all the news you need to keep your SEO game strong. Don’t miss out! Join our community today! 📈

Adam

General Manager, DiagnoSEO

SEO Expert

Company and product FAQs

Posted Oct 21, 2024

When was your company founded & where is it located?

In 2016 in Europe.

What are past projects, failures, or successes you’ve had in your career?

We worked on several SEO projects that helped some of the world’s biggest brands, including European leaders, significantly grow their online presence. One standout success was leading a campaign that multiplied a client’s organic traffic several times over in just six months through a holistic SEO approach. This included keyword research, SERP analysis, content creation, on-page optimizations, technical SEO improvements, and link building. All of this was achieved with the help of DiagnoSEO tools!

What is your team size?

Teams: Development, Marketing, Support, Design

Are you funded or bootstrapped?

DiagnoSEO is currently bootstrapped, meaning we’ve grown the company without outside funding. We’ve built everything from the ground up using our own resources, over a decade of experience, and a lot of hard work.

What 3rd party tools is your product critically dependent on?

AI language models like GPT, Claude, and Gemini for AI-powered features. Google APIs for data related to keyword research. WordPress for SEO plugin.

Where is your customer data stored?

Europe

What’s the origin of the idea for your product?

The idea for DiagnoSEO came from years of working in the SEO industry, where we noticed a consistent gap: SEO tools were often too complex, expensive, and missing features that were important to us. We wanted to create a solution that makes SEO accessible, actionable, and straightforward for everyone, regardless of their expertise or budget, and without the need to switch between tools.

We’re passionate about DiagnoSEO because it empowers users to take control of their online presence. Seeing businesses grow and succeed with our software is what drives us every day.

What problem is your product solving and how?

What Problem DiagnoSEO Solves and How

DiagnoSEO combines all your SEO and content marketing tools in one place, eliminating the hassle of using multiple platforms. It provides everything you need, including SEO audits, keyword research, SERP analysis, content creation and optimization, backlink checking, and more. This saves you both time and money.

What Sets DiagnoSEO Apart

DiagnoSEO offers the most complete and accurate SEO audit tool, checking over 200 ranking factors.

DiagnoSEO is the only all-in-one SEO software with a powerful, lightweight WordPress SEO plugin. The plugin includes unique features such as an affiliate deeplink hider, advanced schema support (including reviewedBy schema), and an AI-powered comments generator.

The SEO Content Editor in DiagnoSEO focuses on both SEO and UX, making it easy to create content that is both SEO-friendly and user-friendly.

What’s the #1 thing you’re looking to gain from the AppSumo campaign?

Our #1 goal with the AppSumo campaign is to reach a wider audience and introduce DiagnoSEO to passionate SEO specialists, entrepreneurs, marketers, copywriters, and agencies in need of a powerful, all-in-one, full-stack SEO and content marketing solution. We aim to build a strong community of users who provide valuable feedback, help us grow, and become advocates for our tools. This campaign is about connecting with you, understanding your needs, and making DiagnoSEO the best SEO and content marketing toolkit available. Let’s grow together! 🚀

What are your plans with the customers, cash, and learnings from the AppSumo campaign?

We plan to use feedback from our new customers to improve DiagnoSEO, build a loyal community, and tailor our product to real user needs. The funds will be reinvested in product development, new features, and enhanced customer support. Insights gained from this campaign will guide our future updates, helping us refine DiagnoSEO into the best all-in-one SEO and content marketing toolset.

What’s Next if We Succeed?

If we achieve our goals, we’ll expand our features, add new tools, enhance integrations, and accelerate our growth plans. This includes launching new updates, growing our team, and continuously improving DiagnoSEO to stay ahead of market needs.

Any details to clarify about the deal?

With the AppSumo deal, you get access to DiagnoSEO’s core features: AI-powered audits, SERP analysis, backlink checker, keyword research, content editor, and our unique WordPress SEO plugin. All in one package! This deal offers lifetime access, allowing you to enjoy all updates and improvements without recurring costs as specified in our pricing plans. It’s perfect for SEO specialists, digital marketers, copywriters, agencies, and anyone looking to simplify and improve their SEO and on-page content marketing efforts with one powerful software. Don’t miss out on this exclusive offer!

Anything else you'd like to add?

We’re thrilled to join the AppSumo community and can’t wait to see how DiagnoSEO helps you achieve your SEO and content marketing goals. Your feedback is crucial in shaping the future of our product, and we’re committed to making DiagnoSEO the go-to tool for SEO and content marketing. Don’t hesitate to reach out with questions, suggestions, or to share your success stories. We’re here to support you every step of the way. Let’s grow together! 🚀

SEO Expert

Questions

Reviews

Questions & Reviews

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Showing 5 of 43 questions

Q: Credit consumption info

I just purchased license 2 and wanted to ask are the 2400 credits available recharged every month? How does it work?

info9994Apr 28, 2025

Founder Team

Adam_DiagnoSEO

Apr 28, 2025

A: Hello,

Thank you for your comment.

Credits don't renew, but:

WordPress SEO plugin don't consume credits at all.

For Tier 2: You received one-time allocation of 2,400 credits that never expire (equivalent to 12 months of credits from our existing Advanced plan).

We’re giving you 12 times more credits upfront than regular monthly subscribers receive. Normally, a user has to pay a subscription fee every month to keep the account active to use credits, and any purchased credits expire after a year. Subscribers also still need an active subscription to use these credits. But Sumo-lings don’t have to pay monthly fees, and they can use their credits whenever they want—no expiration date!

The cost of credits for each tool usage is described in detail here: https://diagnoseo.com/pricing/#credits

The option to purchase additional credits is optional and starts from as little as $1 per 10 credits.

There’s also something cool to share: some tool features don’t require any credits at all. For example, live checkpoints in the Content Editor (https://app.diagnoseo.com/tools/content/). The WordPress SEO plugin doesn’t consume credits either (https://diagnoseo.com/wordpress-seo-plugin/)!

Hope this helps!

Could you please write to support@diagnoseo.com if you need further assistance? Our support team will be happy to help.

Kind regards,
Adam

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Helpful?

Q: Do the Auto Meta Description and Similar Functions of your WP Plugin Use Up Credits

and if so how are the credits calculated? Can we bring use our own OpenAI api key to power the plugin?

LTDLover954PLUSApr 16, 2025

Founder Team

Adam_DiagnoSEO

Apr 16, 2025

A: Hello,

Thank you for your comment.

No, none of the AI-related features in our WordPress plugin consume any credits from us.

To use AI features like auto meta descriptions (coming in the next big release), AI-powered keyword suggestions, and the AI comments generator, you’ll need to bring your own OpenAI API key. Once connected, you can use these features without any usage limits from our side — your usage will only depend on your OpenAI account.

This setup gives you full control and flexibility over your AI usage.

Hope this helps!

Could you please contact us at support@diagnoseo.com for more details.

Kind regards,
Adam

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Helpful?

Q: Can Your SEO Optimized Comments Feature of the Plugin be Configured to Block

comments from other visitors (as most are spam).

Also I would like to confirm that if I get Tier 2 that I receive a lifetime access to your plugin (the same one that sells for $49 a year on your site) for unlimited sites.

Finally, are there any videos or articles comparing your plugin to SEOpress?

LTDLover954PLUSApr 15, 2025

Founder Team

Adam_DiagnoSEO

Edited Apr 16, 2025

A: Hello,

Thank you for your comment.

You can just disable commenting using built-in WordPress settings. Simply go to "Dashboard > Settings > Discussion", uncheck "Allow people to submit comments on new posts," and click "Save Changes". This will prevent new posts from allowing comments, while still letting you create and publish content as usual. You might also consider using plugins like Akismet to block spam comments.

Yes, if you choose Tier 2, you do receive lifetime access to the plugin for unlimited sites. This is the same plugin that’s currently listed at $49 per year on our main website. Please note that on our website there is a discounted price.

Sure, you can compare the DiagnoSEO plugin to SEOPress here: https://diagnoseo.com/seopress-alternative/

Hope this helps!

Could you please contact us at support@diagnoseo.com for more details.

Kind regards,
Adam

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Q: Regarding the issue of keyword tracking

I would like to know approximately how much it costs for you to track keywords every day?
Can keyword tracking be displayed on the WP website?

cenfufaPLUSApr 12, 2025

Founder Team

Adam_DiagnoSEO

Apr 14, 2025

A: Hello,

Thank you for your comment.

Daily monitoring is available only for customers on the Enterprise plan. In order to determine the pricing, we need to know the number of keywords you'd like to track.

Could you please contact us at support@diagnoseo.com for more details.

Kind regards,
Adam

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Q: Its possible to buy the basic version and make after some upgrade to the 199€ version?

moin20Apr 4, 2025

Founder Team

Adam_DiagnoSEO

Apr 4, 2025

A: Hello,

Thank you for your comment.

Yes, it is possible to purchase the basic version and later upgrade to the €199 version, as long as the deal is still available on AppSumo.

Hope this helps!

Kind regards,
Adam

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Customers appreciate DiagnoSEO for its powerful SEO tools, intuitive UX, and valuable features like the AI-powered audits, SERP analysis, backlink checker, and SEO Content Editor. Some users have reported minor issues with the WordPress plugin and pricing transparency. Overall, DiagnoSEO is a solid buy for those in need of a full-stack SEO and content marketing toolkit. With a 60-day money-back guarantee, it's worth giving it a try.

AI-powered summary of customer reviews

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Showing 5 of 11 reviews

Verified purchaser

Member since: Feb 2025Deals bought: 1

5 stars

5 stars

Posted: Feb 6, 2025

Powerful SEO Tool with Intuitive Design and Valuable Features

Pretty solid SEO software with a clean and intuitive UX. The interface is user-friendly, and the features provide real value for SEO optimization. Keyword generator, SEO checker, and AI article generator are my favorite. I can definitely recommend it.

Founder Team

Adam_DiagnoSEO

Feb 6, 2025

Hello,

Thank you so much for the great feedback!

Kind regards,
Adam

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Verified purchaser

Member since: Dec 2023Deals bought: 174

1 stars

1 stars

Posted: Jan 3, 2025

Bait and Switch

This seems like a great deal at first but when you dig in, you realize it's not. They market unlimited searches but only give you enough credits for a few... then you realize the credits they give you are not monthly renewed. Then you realize the fees to get more credits are EXORBITANT. Look out, Sumolings... I am refunding.

Founder Team

Adam_DiagnoSEO

Edited Jan 7, 2025

Hello,

Based on your comment (in the "Questions" section) it looks you were using only Backlink Checker tool and mentioned that the cost of usage of this tool is too high for you (as the reason of the refund). We reduced cost of this tool from 8 to 3 credits. In the deal there is also WordPress SEO plugin and 30+ other very advanced and specialized SEO and content marketing tools like e.g. AI article generator. Some tools requires more resources and cost but some cost 1 credit (source https://diagnoseo.com/pricing/#credits).
Some tool features don’t require any credits at all. For example, live checkpoints in the Content Editor and the Snippet Preview tool are free to use. The WordPress SEO plugin doesn’t consume credits either!

We offer a free trial on our website so every Sumo-ling can try the tools and plugin before buying.

We’ve removed the usual limits and added a massive chunk of credits that never expire. We’re giving you 12 times more credits upfront than regular monthly subscribers receive. Normally, a user has to pay a subscription fee every month to keep using credits, and any purchased credits expire after a year. Subscribers also still need an active subscription to use the credits. But Sumo-lings don’t have to pay monthly fees, and they can use their credits whenever they want—no expiration date!

Extra credits are optional and starts from as low as 1$ for 10 credits. Basic tools usage (like SEO audit or AI Article Generator) starts from 1 credit (source https://diagnoseo.com/pricing/#credits).

We added an announcement to clarify the limits, credits, and recently added new tools here: https://appsumo.com/products/diagnoseo/#from-the-founders

Kind regards,
Adam

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Verified purchaser

Member since: Nov 2020Deals bought: 390

5 stars

5 stars

Posted: Dec 18, 2024

Really, what I think about this tool.

What I really think about this tool is that it is incredibly powerful. While I utilize various SEO tools like Keyword Gap, Zenwriter, Markcopy, TopicMojo, Ubersuggest, AnswerThePublic, SEOCrawl, Junia, Ranklitys, Nytro SEO, and PPC Reveal, I’ve found that Diagnoseo stands out.

It does have some areas for improvement, particularly with the WordPress plugin, which has a few minor issues. I believe that any processes conducted with the tool should be temporarily stored on their servers to allow access to results before being deleted to keep costs manageable.

Despite these minor flaws, Diagnoseo offers a wealth of information that many other products do not provide. Its TF-IDF feature and advanced audits are remarkable, delivering precise data that reflects effectiveness.

Over the years, I have purchased other tools that are now difficult to find, like Rasa.ai, but Diagnoseo remains a top choice for me. I trust that the interface will continue to improve, but ultimately, the results are what matter most—and they are consistently accurate.

Founder Team

Adam_DiagnoSEO

Jan 3, 2025

Hello,

Thank you so much for the great feedback!

Kind regards,
Adam

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Verified purchaser

Member since: Dec 2024Deals bought: 1

5 stars

5 stars

Posted: Dec 15, 2024

Keep up great work guys!

Hi, I bought this deal for access to SEO tools mainly but WordPress plugin is a nice addition! It's great to see you on AppSumo as I was using your tools since almost a year. I usually check keyword popularity, analyze backlinks, audit my pages, spy on competitors' SEO tactics, and from time to time generate SEO-friendly article for my blog. It would be great if you add the feature to export the results in CSV in the backlink checker as well but honestly this is still the best SEO toolkit on AppSumo right now! Keep up the great job DiagnoSEO!

Founder Team

Adam_DiagnoSEO

Dec 17, 2024

Hello,

Thank you so much for the great feedback!
I am also happy to inform that export to CSV in backlink checker tool will be added this week.

Kind regards,
Adam

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Verified purchaser

Member since: Dec 2024Deals bought: 1

5 stars

5 stars

Posted: Dec 13, 2024

Works fine

I was sceptical about the limits but it looks there are no daily limits now it and works fine for me.
Very useful set of tools I must say. My favourite is AI Article Generator, IMHO very customizable and better than most of content generators I tried.
Audit and SERP Analyzer tools are very solid and detail-oriented so I like them too.
I am not into WordPress so I can't say about it but again tools looks very solid and useful in the daily SEO work.

Founder Team

Adam_DiagnoSEO

Dec 13, 2024

Hello,

Thank you so much for the great feedback!

Kind regards,
Adam

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