SiteimproveWhere accessibility meets performance
vs
Yoast SEOSEO for everyone
Comparison · SEO Tools · weekly run Nov 2
Siteimprove vs Yoast SEO
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Yoast SEO is the stronger AI pick in SEO Tools: it has a visibility score of 0.7 versus 0.6 for Siteimprove.
Choose Siteimprove if…
- You need ISO/IEC 27001:2022 coverage
- You prefer a larger, established vendor (201–500 employees)
Choose Yoast SEO if…
- You want the brand AI engines rank higher (0.7 vs 0.6)
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Siteimprove | Yoast SEO |
|---|---|---|
| Visibility score | 0.6% | 0.7% |
| Change vs last week | New | New |
| Rank in SEO Tools | #39 | #37 |
| Share of voice | 0.4% | 0.4% |
| Mentions this run | 2 | 2 |
| Positive in AI answers | 50% | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Siteimprove 0pp · Yoast SEO 0pp over 0 weekly runs.
Engine by engine
Yoast SEO leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
SiteimproveYoast SEO
Head to head in AI answers
0 engine answers name both brands
0Siteimprove ranked higher
0Yoast SEO ranked higher
Features, pricing & fit
| Dimension | Siteimprove | Yoast SEO |
|---|---|---|
| Pricing model | — | Flat tiers |
| Entry price | — | Free; paid from $118.8 / mo |
| Free plan | — | Yes |
| Deployment | — | WordPress plugin and Shopify app |
| Integrations | 40+ | — |
| Compliance | ISO/IEC 27001:2022 | — |
| Support | Platform onboarding, Accessibility testing by certified experts, Consulting in digital accessibility and digital marketing | 24/7 email and chat support with a Premium subscription, Help center, Free support forums at wordpress.org, Yoast SEO Academy online courses |
| Founded | 2003 | 2010 |
| Headquarters | Bloomington, Minnesota, USA | Wijchen, Netherlands |
| Employees | 201–500 | 51–200 |
| Funding | Minority investment led by Summit Partners · $55M raised | — |
| Best for | Organizations that must balance regulatory compliance with search and content performance. | Entrepreneurs, in-house marketing teams, content creators and niche publishers on WordPress, and ecommerce teams on WooCommerce or Shopify. |
Plans side by side
Siteimprove
Pricing not available.
Yoast SEO
Yoast SEO (free plugin)$0
Yoast SEO Premium$118.8year
Yoast WooCommerce SEO$178.8year
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Siteimprove vs Yoast SEO”, https://slateindex.ai/compare/siteimprove-vs-yoast-seo, data of Nov 2, 2026. Licence: CC BY 4.0.