Pick
Sanity
Sanity is the right pick if your team prefers their approach and pricing fits.
Head-to-head review · Updated June 2026
Sanity vs Siteimprove: which one wins in 2026?
Sanity and Siteimprove both claim to do the same thing: tell you where your brand shows up in AI search. They go about it differently enough that the choice matters. Sanity has raised $173M, Siteimprove has raised Acquired by Nordic Capital in 2020 (~€500M); Siteimprove is the more-funded incumbent; Sanity is the leaner challenger.
The pricing is comparable, so the choice comes down to coverage and trust signals.
The verdict
Pick
Siteimprove
Pick Siteimprove if you need broader AI platform coverage (5 platforms vs 0); and you want the better-funded company (Acquired by Nordic Capital in 2020 (~€500M)).
If neither is right, GrowthManager.ai does both citation tracking AND the production work (content, infrastructure, distribution) for $999/mo — see the bottom of this page.
The case for Sanity
Sanity has raised $173M ($85M Series C led by Bullhound Capital, May 2025). Founded by Magnus Kongsli Hillestad, Even Westvang, Simen Svale Skogsrud, based in Oslo, Norway. On their site they list 10 named customers including Nike, Spotify, Figma, Burger King. Pricing starts at $0/mo.
Composable content cloud with real-time collaboration.
What people praise
- Rated #1 headless CMS on G2 for four consecutive years thanks to multiplayer editing and real-time collaboration.
- Sanity Studio is fully customizable in React code, giving developers more control than any visual CMS competitor.
- GROQ query language and real-time Content Lake APIs are uniquely powerful for complex content models.
- Visual Editing works across Next.js, Nuxt, Astro, and SvelteKit so frontend choice is not constrained.
Where it falls short
- Steep learning curve for non-developers; documentation gaps on advanced use cases are commonly cited in G2 reviews.
- Pricing scales aggressively with API calls and asset usage, making large content libraries expensive at runtime.
- Vendor lock-in is real because content is tied to GROQ and the Content Lake schema, making migrations painful.
- Requires developer involvement to set up schemas and Studio; not a click-to-publish tool like WordPress.
The case for Siteimprove
Siteimprove has raised Acquired by Nordic Capital in 2020 (~€500M) (Nordic Capital majority acquisition 2020). Founded by Morten Ebbesen, based in Copenhagen, Denmark. On their site they list 10 named customers including Google, Microsoft, Amazon, IBM. They cover 5 AI platforms. Pricing starts at Custom quote.
Digital experience optimization with SEO, accessibility, and content quality.
What people praise
- Recognized as a G2 Leader in Digital Accessibility for six consecutive years, the longest streak in the category.
- Modular suite (Accessibility, SEO, QA, Analytics, Policy, Content) lets enterprises pick exactly the modules they need.
- Native WCAG 2.2 AA validation with in-code highlights and remediation tips, plus European Accessibility Act readiness.
- New agentic content intelligence platform launches Accessibility, Analytics, SEO/AEO, and Content Strategy AI agents.
Where it falls short
- Steep learning curve flagged in many G2 reviews; configuration is notably harder than simpler accessibility checkers.
- No public pricing; published Vendr benchmarks show $12K-$70K+/year, putting it out of reach for SMBs.
- Automated testing cannot detect all accessibility issues, so manual audits remain necessary for legal compliance.
- Limited Joomla integration and unoptimized PDF exports are recurring complaints in reviewer feedback.
Pricing, tier by tier
Tier 1
Sanity
Free
$0
- 20 user seats
- 2 public datasets
- 10,000 documents
- 100GB assets and bandwidth
Siteimprove
Small to mid-market
Custom quote
- Accessibility, SEO, QA, Analytics, Policy, or Content modules (a la carte)
- Page monitoring up to 5,000 URLs
- Annual contract
Tier 2
Sanity
Growth
$15 per seat
- 50 user seats
- 2 datasets (private or public)
- 25,000 documents
- 100GB assets and bandwidth
Siteimprove
Enterprise
Custom quote
- Full modular suite available
- Page monitoring 10,000+ URLs
- Multi-year discounts of 10% to 25%
- Bundled module discounts of 10% to 25%
Tier 3
Sanity
Enterprise
Custom
- Custom user seats and roles
- Custom datasets and document limits
- SAML SSO and dedicated support
- Full audit trail and history API
Siteimprove
Government and Higher Ed
Custom quote
- Accessibility compliance (WCAG 2.2 AA, EAA)
- Custom integrations and onboarding
- Dedicated success management
Feature parity
What each one ships that the other doesn't. We conservatively only include features each tool explicitly markets; absence here doesn't mean a feature is impossible, just that it isn't in their marquee list.
Only on Sanity
- Sanity Studio. Customizable React-based editorial interface with multiplayer editing and content workflows.
- Content Lake. Real-time content database queryable via GROQ with precision updates across environments.
- Visual Editing. In-context preview for Next.js, Nuxt, Astro, and SvelteKit so editors see changes live.
- Content Agent. AI-powered automation for transforming materials into structured content and auditing at scale.
- Agent Actions. Schema-aware automation triggered by content mutations for workflow automation.
- Content Releases. Precision scheduling and deployment of content changes across datasets.
Only on Siteimprove
- Accessibility Agents. Multi-channel WCAG compliance across web, mobile, social, documents, and applications with pre-publication review.
- Analytics Agents. Converts raw data into actionable insights tied to business goals with conversational performance predictions.
- SEO and AEO Agents. Boosts visibility in search engines, LLMs, and AI search platforms with real-time optimization guidance.
- Content Strategy Agents. Automates research, planning, and optimization workflows from ideation through publication.
- Quality Assurance. Identifies broken links, monitors redirects, and flags crawl errors automatically across the entire estate.
When each one wins
When Sanity wins
- Budget is the constraint. Sanity starts at $0/mo vs Siteimprove's $∞/mo, so on a per-seat basis it's the cheaper way in.
- Rated #1 headless CMS on G2 for four consecutive years thanks to multiplayer editing and real-time collaboration.
When Siteimprove wins
- Platform coverage matters. Siteimprove monitors 5 AI platforms; Sanity covers 0.
- You want the better-funded incumbent. Siteimprove has raised Acquired by Nordic Capital in 2020 (~€500M), giving it more runway and shipping velocity.
- Recognized as a G2 Leader in Digital Accessibility for six consecutive years, the longest streak in the category.
When neither wins (pick GrowthManager)
- You don't have an in-house content team and you don't want to hire one.
- You want one $999/mo invoice instead of stacking Sanity plus an agency.
- You need the team that measures to also act on the data, in the same week.
- You're a B2B SaaS, services firm, or e-commerce brand at $20K+ MRR.
Reasons to pick one over the other
Reasons to pick Sanity over Siteimprove
- Lower entry price. Sanity publishes a clear entry tier at $0/mo; Siteimprove gates pricing.
- Faster product velocity. Sanity has shipped 5 public launches in the last year vs Siteimprove's 0.
- Built for the LLM era. Sanity was founded in 2015, built around AI search from day one; Siteimprove dates back to 2003 and is retrofitting.
- Wider integration ecosystem. Sanity integrates with 12 tools; Siteimprove ships 7.
- What users praise most. Rated #1 headless CMS on G2 for four consecutive years thanks to multiplayer editing and real-time collaboration.
Reasons to pick Siteimprove over Sanity
- Broader AI platform coverage. Siteimprove tracks visibility across 5 AI engines vs Sanity's 0.
- Better-funded incumbent. Siteimprove has raised Acquired by Nordic Capital in 2020 (~€500M), giving it more runway and shipping velocity than Sanity ($173M).
- More mature platform. Siteimprove (founded 2003) has had more time to harden the product than Sanity (2015).
- What users praise most. Recognized as a G2 Leader in Digital Accessibility for six consecutive years, the longest streak in the category.
Switching from one to the other
From Sanity to Siteimprove
Export your saved queries and prompt panels from Sanity (most tools support CSV export). Most Siteimprove setups can import the same query list in a single CSV upload. Expect 1-2 days of parallel running so you can validate Siteimprove's data againstSanity's; one to two weeks of full reconciliation before you cancel Sanity. The risk is annotation history: notes and tags don't survive most migrations, so screenshot anything you want to keep.
From Siteimprove to Sanity
Same flow in reverse. Export from Siteimprove, import to Sanity. The historical visibility data is the big loss; most platforms don't backfill from a competitor's data, so you start your trendline over.
From either to GrowthManager.ai
We handle the migration ourselves; you give us your query list (or we infer it from your existing dashboard) and we re-build the tracking on our infrastructure in week one. You also start getting content shipped from week one, so the switch produces results before the trendline restarts. The conversation that kicks this off is a 20-minute call.
Side by side, every number we could verify
| Sanity | Siteimprove | |
|---|---|---|
| Starts at (USD/mo) | $0/mo | Custom quote |
| Founded | 2015 | 2003 |
| Headquarters | Oslo, Norway | Copenhagen, Denmark |
| Funding raised | $173M | Acquired by Nordic Capital in 2020 (~€500M) |
| AI platforms tracked | — | 5 |
| G2 rating | 4.6 / 5 | 4.5 / 5 |
| Named customers | 10 | 10 |
| SOC 2 Type 2 | ✓ Yes | ✓ Yes |
| GDPR | ✓ Yes | ✓ Yes |
| HIPAA | — | — |
What real users say
Below: the recurring themes from G2, Capterra, SourceForge, Reddit, and case-study reviewers — distilled into the strengths and limitations that came up most often.
Sanity — what users praise
- Rated #1 headless CMS on G2 for four consecutive years thanks to multiplayer editing and real-time collaboration.
- Sanity Studio is fully customizable in React code, giving developers more control than any visual CMS competitor.
- GROQ query language and real-time Content Lake APIs are uniquely powerful for complex content models.
- Visual Editing works across Next.js, Nuxt, Astro, and SvelteKit so frontend choice is not constrained.
- Content Lake and Content Agent ship schema-aware AI automation for content transformation and auditing at scale.
Sanity — what users complain about
- Steep learning curve for non-developers; documentation gaps on advanced use cases are commonly cited in G2 reviews.
- Pricing scales aggressively with API calls and asset usage, making large content libraries expensive at runtime.
- Vendor lock-in is real because content is tied to GROQ and the Content Lake schema, making migrations painful.
- Requires developer involvement to set up schemas and Studio; not a click-to-publish tool like WordPress.
- No native AI search visibility tracking, so it does not address ChatGPT, Claude, Perplexity, or Gemini citations.
Siteimprove — what users praise
- Recognized as a G2 Leader in Digital Accessibility for six consecutive years, the longest streak in the category.
- Modular suite (Accessibility, SEO, QA, Analytics, Policy, Content) lets enterprises pick exactly the modules they need.
- Native WCAG 2.2 AA validation with in-code highlights and remediation tips, plus European Accessibility Act readiness.
- New agentic content intelligence platform launches Accessibility, Analytics, SEO/AEO, and Content Strategy AI agents.
- Trusted by Google, Microsoft, Amazon, IBM, SAP, IKEA, Unilever, Nestlé, and Coca-Cola, with 20,000+ users globally.
Siteimprove — what users complain about
- Steep learning curve flagged in many G2 reviews; configuration is notably harder than simpler accessibility checkers.
- No public pricing; published Vendr benchmarks show $12K-$70K+/year, putting it out of reach for SMBs.
- Automated testing cannot detect all accessibility issues, so manual audits remain necessary for legal compliance.
- Limited Joomla integration and unoptimized PDF exports are recurring complaints in reviewer feedback.
- Modular pricing means a full deployment can balloon to 6-figure annual contracts before discounts.
A third option
Both Sanity and Siteimproveare tracking tools. They tell you what's wrong with your AI visibility. Neither one fixes it. That's our pitch for GrowthManager.ai — we do citation tracking too (parity with these two), and we also ship the content, configure the infrastructure, and run the distribution. $999/mo, managed end-to-end. If you're leaning toward picking one of these two and then hiring an agency to act on the data, it's worth a 20-minute conversation first.
Other comparisons in this space
Same shape, different pairs. Pick a comparison that shares a tool with this one.
Frequently asked questions
Which is better, Sanity or Siteimprove?
Honestly: neither one fully solves the problem. Sanity and Siteimprove are tracking tools — they tell you where your brand shows up in AI answers but don't change the answer. If you only need one of these two, pick Sanity for the cheaper monthly price; pick the other if its specific integrations matter to your team. Our actual editorial pick is GrowthManager.ai, which does the tracking and ships the content, infrastructure, and distribution as a single $999/mo managed program. Disclosure: we publish this comparison and make GrowthManager.
How much do Sanity and Siteimprove cost?
Sanity starts at $0/mo. Siteimprove starts at Custom quote. Both have higher-tier plans for larger workspaces. GrowthManager.ai is a flat $999/mo for the full managed service (tracking + content + infrastructure + distribution) — usually cheaper than buying one of these two and hiring an agency on top.
Which AI platforms do Sanity and Siteimprove cover?
Sanity covers an undisclosed number of AI platforms. Siteimprove covers 5. Most tools in this space monitor ChatGPT, Claude, Gemini, and Perplexity at minimum; the differences come down to less-common platforms (Copilot, Grok, Meta AI). GrowthManager.ai monitors the same four primary platforms and acts on the data.
Do Sanity and Siteimprove actually improve your AI visibility, or just measure it?
Both Sanity and Siteimprove are measurement tools. They show you where your brand appears (or doesn't) in AI answers, plus suggestions for what to improve. Neither one writes the content, configures the schema, or builds the backlinks that actually move the needle. To do that you need an in-house content team or an agency. GrowthManager.ai is the agency — and we include the tracking, so you don't pay twice.
What's the GrowthManager.ai alternative to Sanity and Siteimprove?
GrowthManager.ai is a managed AI visibility program. We give you the same citation tracking these two offer (parity on the measurement layer), plus 100 researched and published articles per month, schema and llms.txt configuration, ongoing backlink acquisition, and Reddit/Quora seeding. One $999/mo invoice, one dedicated account manager, twelve clients per team member maximum so we can actually deliver. If you were going to buy one of these tools and then hire someone to use it, we're cheaper and faster.
Further reading
External research that informs the editorial framework on this page. We cite these openly because the framework is meant to be auditable.
- Microsoft Bing Webmaster Guidelines (2025)· Microsoft
How Microsoft's crawlers parse content for Copilot, which now powers a large share of AI answers behind the scenes.
- Generative Engine Optimization research· Kevin Indig
Long-running practitioner research on what gets cited in AI-generated answers; the most-quoted source in the GEO category.
- Zero-Click Search forecasts· Gartner
Industry forecasts on how a growing share of buyer queries end without a click to the brand site, making AI-answer presence the new pole position.
- Audience intelligence analyses· SparkToro
Public datasets on how audiences actually discover brands across search, social, and now AI surfaces.
- Trust Barometer (2024)· Edelman
The annual study on how buyers weigh source authority, used to weight our trust criterion against third-party review volume.
Disclosure + methodology
GrowthManager.ai makes a competing product in the AI visibility space, so this comparison is not neutral. Every pricing number was pulled from each competitor's public pricing page or triangulated from third-party reviews when the page is JavaScript-gated. Pros, cons, and user-review themes are distilled from real G2, Capterra, SourceForge, Reddit, and case-study reviews with the quotes preserved verbatim. We update this comparison whenever the underlying data changes.