SiteimproveWhere accessibility meets performance
vs
UnlighthouseLighthouse for your entire site
Comparison · SEO Tools · weekly run Nov 2
Siteimprove vs Unlighthouse
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Siteimprove is the stronger AI pick in SEO Tools: it has a visibility score of 0.6 versus 0 for Unlighthouse.
Choose Siteimprove if…
- You want the brand AI engines rank higher (0.6 vs 0)
- You need ISO/IEC 27001:2022 coverage
Choose Unlighthouse if…
No clear advantage in the published data.
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Siteimprove | Unlighthouse |
|---|---|---|
| Visibility score | 0.6% | 0% |
| Change vs last week | New | New |
| Rank in SEO Tools | #39 | #55 |
| Share of voice | 0.4% | 0% |
| Mentions this run | 2 | 0 |
| 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 · Unlighthouse 0pp over 0 weekly runs.
Engine by engine
Siteimprove leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
SiteimproveUnlighthouse
Head to head in AI answers
0 engine answers name both brands
0Siteimprove ranked higher
0Unlighthouse ranked higher
Features, pricing & fit
| Dimension | Siteimprove | Unlighthouse |
|---|---|---|
| Deployment | — | Runs locally on the user's own computer; results are shown in a local server on localhost:5678. |
| Integrations | 40+ | — |
| Compliance | ISO/IEC 27001:2022 | — |
| Support | Platform onboarding, Accessibility testing by certified experts, Consulting in digital accessibility and digital marketing | — |
| Founded | 2003 | — |
| Headquarters | Bloomington, Minnesota, USA | — |
| Employees | 201–500 | — |
| Funding | Minority investment led by Summit Partners · $55M raised | — |
| Best for | Organizations that must balance regulatory compliance with search and content performance. | Teams that need full-site Lighthouse audits, such as pre-launch checks and ongoing monitoring. |
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Siteimprove vs Unlighthouse”, https://slateindex.ai/compare/siteimprove-vs-unlighthouse, data of Nov 2, 2026. Licence: CC BY 4.0.