DiagnoSEO
DiagnoSEO combines SEO and content marketing tools for audits, keyword research, backlink checks, content editing, and WordPress.
About DiagnoSEO
DiagnoSEO is a web-based SEO and content marketing platform whose toolset covers on-page audits, keyword research, backlink checks, competitor and SERP analysis, content editing, snippet preview, and website monitoring. The site states that its SEO checker reviews more than 200 on-page ranking factors, that keyword research draws on Google autosuggest with search volume data, and that backlink checks can be run for a user's own or competitors' domains. It also offers a WordPress SEO plugin and a Gutenberg-first theme and builder.
Key features
- SEO checker auditing more than 200 on-page ranking factors
- Keyword research from Google autosuggest with search volume data
- Backlink checker for own or competitor domains and pages
- SERP analyzer with AI-powered competitor analysis tips
- Content editor plus TF-IDF and keyword frequency tools
- WordPress SEO plugin and Gutenberg-first theme and builder
Best for: Website owners and marketers who want audits, keyword and backlink research, content editing, and WordPress tooling in one platform.
Good for
- Covers audits, keyword research, backlinks, content editing, and WordPress from one toolkit
- SEO checker is stated to review over 200 on-page ranking factors
- Annual subscriptions are advertised as saving 16 percent, equivalent to two months free
Watch out for
- No pricing is published on the homepage
- Performance comparisons with other SEO tools, including a claimed four-times advantage, are self-reported by the vendor
DiagnoSEO at a glance
- Website
- diagnoseo.com
- Category
- Marketing & SEO › SEO & Web Analytics
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for SEO & Web Analytics
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DiagnoSEO FAQ
What tools are included in DiagnoSEO?
The homepage lists SEO audits, SERP and competitor analysis, keyword research, a content editor, backlink checking, keyword placement, website monitoring, a TF-IDF tool, snippet preview, and a WordPress SEO plugin.
Is there a discount for paying annually?
The site advertises that subscribing annually saves 16 percent, described as getting two months free.
Does DiagnoSEO check anything beyond SEO?
Its quality-control section lists SEO, accessibility, content quality, performance, analytics, social media, security, usability, legal and GDPR, brand compliance, and best practices.
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