# DiagnoSEO review (2026): is it worth $9 a month per user? > Credit-based SEO toolkit with audits, keyword tools and AI writing Checked Oct 23, 2026 ยท graded Oct 23, 2026 by ToolGPA. DiagnoSEO is a web-based SEO toolkit with page audits, a site crawler, SERP and competitor analysis, keyword research, a backlink checker and AI article writing, alongside a WordPress SEO plugin of the same name. Plans are priced per user and come with a set number of credits that each tool spends when it is used. - **Category:** SEO Tools - **Made by:** DiagnoSEO (since 2016) - **Website:** https://diagnoseo.com - **Runs on:** Web - **Who should skip it:** Pricey if you need rank tracking or the API, as both start on Enterprise at $129 per user a month. - **Facts last checked:** Oct 23, 2026 ## Pricing As of Oct 23, 2026, DiagnoSEO is a paid product with a free trial, starting at $9 per user / month, billed monthly. - **Pricing model:** Free trial - **Free plan:** None. - **Free trial:** 7-day free trial of the Basic plan; the Advanced plan can be tried for $7. | Plan | Price | What you get | | --- | --- | --- | | Basic | $9 per user / month, billed monthly | 20 tools, 60 credits, 5 projects and the DiagnoSEO Pro WordPress plugin on 5 sites. Has a 7-day free trial. | | Advanced | $19 per user / month, billed monthly | 30+ tools including the advanced ones, 200 credits, 20 projects and the WordPress plugin on 10 sites. Can be tried for $7. | | Pro | $39 per user / month, billed monthly | 60+ tools, 400 credits, 100 projects (50 on annual billing), the plugin on unlimited sites and the WordPress theme builder on 30 sites. | | Enterprise | $129 per user / month, billed monthly | 1,600 credits, 1,000 projects, rank tracking, an embeddable audit tool, custom audits, bulk content generation, API access and dedicated support. | Read from https://diagnoseo.com/pricing/ on Oct 23, 2026. Prices change, so confirm with DiagnoSEO before buying. ## Ways to pay less - **Two months free with annual billing** (Annual discount): DiagnoSEO says annual billing saves 16%, or two months free: Basic is $90 per user a year instead of $9 a month. Source: https://diagnoseo.com/pricing/ - **10% off renewals at the regular price** (Other savings): The pricing FAQ says subscriptions renewed at the regular price get a 10% discount, the same on every plan. Source: https://diagnoseo.com/pricing/ ## Key features - **SEO audit and site crawler:** Checks a page against more than 200 on-page factors, with an advanced audit at 3 credits, and crawls whole sites; the pages allowed per crawl rise with the plan. - **SERP Analyzer and visibility checker:** The SERP Analyzer compares the pages ranking for a keyword and gives AI tips on what to change; the Website Visibility Checker reports a domain's top 50 or top 1,000 keywords. - **Keyword research:** Keyword ideas from live Google autocomplete with search volume and intent, related keywords, questions, People Also Ask, a topical map and bulk volume checks of 1,000 keywords. - **Content Editor and AI writing:** Semantic keyword recommendations while you write, plus AI articles of up to 5,000 words with GPT-4o mini or GPT-4o, rewriting, outlines, headlines and internal link suggestions. - **Backlink checker:** Lists the linking domains and pages for any site, with broken backlinks, anchor text distribution, link locations and linking TLDs at no extra credit. - **WordPress SEO plugin:** The DiagnoSEO Pro plugin adds AI titles and meta descriptions, schema, content analysis, sitemaps, redirections and internal links to WordPress sites. ## Good for - Freelancers and small sites wanting many SEO and AI writing tools for under $10 a month - WordPress site owners who also want the DiagnoSEO Pro plugin - Agencies running audits and content work across many client projects ## Worth knowing - Tools spend credits per use (an SEO audit 1, a GPT-4o article 10); extra credits cost $1 per 10, need an active plan and expire after a year. - Rank tracking, API access and the embeddable audit tool come only with Enterprise at $129 per user a month. - Monthly and annual plans list different limits: Pro has 100 projects monthly but 50 annually, and Enterprise tracks 500 or 5,000 keywords. - Refunds cover the first purchase only, if asked within 7 days. The WordPress plugin is also sold alone at $49 a year, shown cut from $69. ## ToolGPA grades **GPA: 2.6 out of 4**, graded Oct 23, 2026. DiagnoSEO is a toolkit of page audits, a site crawler, SERP and keyword research, a backlink checker and AI article writing, with its WordPress plugin included, from $9 per user a month. But every tool spends credits and Basic gets 60 a month, rank tracking and the API wait for Enterprise at $129, and monthly and annual plans list different limits. - **Value for money: A.** Basic is $9 per user a month, under 60% of this category's cheaper quarter, for 20 tools, 60 credits and 5 projects. The catch: a keyword ideas report is 10 credits, and rank tracking needs Enterprise at $129. - **Free plan and trial: C.** No free plan, but a 7-day free trial of Basic, and Advanced can be tried for $7. Refunds cover a first purchase only, within 7 days. - **Features: C.** Page audits, a site crawler, a SERP analyzer, keyword research, a backlink checker, a content editor, AI articles and a WordPress plugin. The gap the listing names: rank tracking only comes with Enterprise. - **Ease of use: C.** No rating on record. Each tool spends a different number of credits, from 1 for an audit to 10 for a GPT-4o article, so there's a meter to keep an eye on. - **Platforms and integrations: B.** Web plus a WordPress plugin, connected to Search Console, with an API on Enterprise. No desktop or phone app. These are ToolGPA's own grades. Graded from this listing, whose facts were read from DiagnoSEO's own pages on 23 October 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among SEO tools - DiagnoSEO's GPA of 2.6 is higher than 56 of the 64 other SEO tools we grade, and level with 4. - It stands best on value for money (A, above 57 of 64) and worst on features (C, above 0). - Its paid plans start at $9 a month for each person, against a middle price of $39 for the category: 1 of the 56 others that charge start lower. - On features, ease of use and platforms it scores 2.3 out of 4. 1 tool scores higher and costs less. The category's chart of price against score: https://toolgpa.com/charts/seo ## Keep it, or make your own? **Keep it.** To replace DiagnoSEO you would be making search volumes for millions of keywords, gathered and kept up to date. That is not a weekend's work, with an AI app builder or without one. It is one of the better ones too: its GPA of 2.6 is higher than 56 of the 64 other SEO tools we grade. It costs $108 a year. - You could make: Long-form writing: an app builder makes this well. - You could not: Search volumes for millions of keywords, gathered and kept up to date. - You could not: An index of the links between billions of web pages. - You could not: A crawler that checks every page of a site. - You could not: A score built from what the top results for each keyword cover. - You could not: It is priced for each person, which means accounts and billing for a team. - You could not: It plugs into other products, WordPress and Google Search Console among them, and has an API. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with WordPress, Google Search Console **Tags:** Site audit, Keyword research, Backlink analysis, Content optimization, Long-form writing, Public API ## Alternatives - [SEOptimer](https://toolgpa.com/tools/seoptimer): SEO audit tool with white-label reports and a lead-generation widget. [Compare](https://toolgpa.com/compare/diagnoseo-vs-seoptimer) - [Seobility](https://toolgpa.com/tools/seobility): Site audits, rank tracking and backlink monitoring in one web app. [Compare](https://toolgpa.com/compare/diagnoseo-vs-seobility) - [SE Ranking](https://toolgpa.com/tools/se-ranking): SEO platform for rank tracking, audits, research and AI visibility. [Compare](https://toolgpa.com/compare/diagnoseo-vs-se-ranking) - [Semrush](https://toolgpa.com/tools/semrush): SEO suite for keyword research, rank tracking and AI search visibility. [Compare](https://toolgpa.com/compare/diagnoseo-vs-semrush) - [NeuronWriter](https://toolgpa.com/tools/neuronwriter): Content editor that scores drafts against the pages already ranking. [Compare](https://toolgpa.com/compare/diagnoseo-vs-neuronwriter) ## Sources The prices, plans, platforms and features above were read from these pages on Oct 23, 2026: - https://diagnoseo.com/pricing/ - https://diagnoseo.com/ - https://diagnoseo.com/about/ - https://diagnoseo.com/rank-tracker/ - https://diagnoseo.com/refund-policy/ - https://diagnoseo.com/terms/ Page: https://toolgpa.com/tools/diagnoseo Listed by ToolGPA (toolgpa.com).