Google Keyword Planner vs Siteimprove
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Google Keyword Planner is the stronger AI pick in SEO Tools: it has a visibility score of 2.2 versus 0.6 for Siteimprove.
Choose Google Keyword Planner if…
- You want the brand AI engines rank higher (2.2 vs 0.6)
- You need ISO/IEC 27001:2022 covering Google Ads coverage
- You prefer a larger, established vendor (5,000+ employees)
- free keyword research tool
Choose Siteimprove if…
- AI answers describe it more positively (50% vs 0% positive)
- You need ISO/IEC 27001:2022 coverage
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Google Keyword Planner | Siteimprove |
|---|---|---|
| Visibility score | 2.2% | 0.6% |
| Change vs last week | New | New |
| Rank in SEO Tools | #26 | #39 |
| Share of voice | 0.5% | 0.4% |
| Mentions this run | 3 | 2 |
| Positive in AI answers | 0% | 50% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Google Keyword Planner 0pp · Siteimprove 0pp over 0 weekly runs.
Engine by engine
Google Keyword Planner leads on 2 of 3 engines
Head to head in AI answers
0 engine answers name both brands
Features, pricing & fit
| Dimension | Google Keyword Planner | Siteimprove |
|---|---|---|
| Deployment | Web tool accessed inside the Google Ads interface, with no separate installation. | — |
| Integrations | — | 40+ |
| Compliance | ISO/IEC 27001:2022 covering Google Ads | ISO/IEC 27001:2022 |
| Support | — | Platform onboarding, Accessibility testing by certified experts, Consulting in digital accessibility and digital marketing |
| Founded | — | 2003 |
| Headquarters | 1600 Amphitheatre Pkwy, Mountain View, California | Bloomington, Minnesota, USA |
| Employees | 5,000+ | 201–500 |
| Funding | — | Minority investment led by Summit Partners · $55M raised |
| Best for | Advertisers and marketers who run Google Ads and want free keyword research and volume data. | Organizations that must balance regulatory compliance with search and content performance. |
Pros and cons
Themes from the AI answers that mention each brand
Google Keyword Planner
- free keyword research tool
- keyword ideas and search-volume data
- requires a Google Ads account
Siteimprove
Profile in progress.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Google Keyword Planner vs Siteimprove”, https://slateindex.ai/compare/google-keyword-planner-vs-siteimprove, data of Nov 2, 2026. Licence: CC BY 4.0.