★ Our pick
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)).
Head-to-head review · Updated June 2026
Siteimprove vs Storyblok: which one wins in 2026?
Siteimprove and Storyblok 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. Siteimprove has raised Acquired by Nordic Capital in 2020 (~€500M), Storyblok has raised $138M total; $80M Series C announced June 2024; Siteimprove is the more-funded incumbent; Storyblok is the leaner challenger.
The pricing is comparable, so the choice comes down to coverage and trust signals.
The verdict
Pick
Storyblok
Storyblok is the right pick if your team prefers their approach and pricing fits.
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 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.
The case for Storyblok
Storyblok has raised $138M total; $80M Series C announced June 2024 (Series C of $80M (June 2024) led by Brighton Park Capital). Founded by Dominik Angerer, Alexander Feiglstorfer, based in Linz, Austria. On their site they list 8 named customers including Tesla, Adidas, Netflix, Oatly. Pricing starts at $0/mo.
Visual headless CMS for marketing teams and developers.
What people praise
- Visual Editor lets marketers click directly on the live preview to edit, the rare headless CMS that does not force marketers into a JSON form.
- Highest-rated enterprise headless CMS on G2 with 4.5 stars from 572 reviews and 71+ category badges in Spring 2026.
- ISO 27001 certified and SOC 2 Type II compliant, hosted on AWS Frankfurt with full GDPR DPA.
- Trusted by Tesla, Adidas, Netflix, Oatly, Decathlon, and Deliveroo for global multi-locale rollouts.
Where it falls short
- Component model has a real learning curve; teams new to headless need upfront planning before content modeling.
- JavaScript SDKs and documentation get repeat complaints about gaps and incompleteness from developers.
- Translation workflow is cumbersome with weak search and navigation across locales.
- UI slows down noticeably on larger spaces with many components or stories.
Pricing, tier by tier
Tier 1
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
Storyblok
Starter
Free
- 1 space
- 100GB traffic/month
- 100k API requests/month
- 2 locales
Tier 2
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%
Storyblok
Growth
$99
- 5 user seats
- 400GB traffic/month
- 1M API requests/month
- 2 locales
Tier 3
Siteimprove
Government and Higher Ed
Custom quote
- Accessibility compliance (WCAG 2.2 AA, EAA)
- Custom integrations and onboarding
- Dedicated success management
Storyblok
Growth Plus
$349
- 15 user seats
- 1TB traffic/month
- 4M API requests/month
- 10 locales
Tier 4
Siteimprove
—
—
Storyblok
Premium & Elite (Enterprise)
Custom
- Customizable spaces, users, locales
- AI SEO and content workflows
- GraphQL API
- SSO and SCIM
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 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.
Only on Storyblok
- Visual Editor. Click-to-edit live preview that lets marketers update content directly on the rendered page.
- Component-based content. Reusable blocks (bloks) modeled in the CMS and consumed via REST or GraphQL.
- Internationalization. Field-level and folder-level translations with up to 10 locales on Growth Plus, unlimited on Enterprise.
- FlowMotion. Workflow automation with execution-based tiers (40k, 120k, 180k+ executions/month).
- AI SEO & AI Credits. Built-in AI translation, drafting, and SEO assistant metered via per-plan AI credit pools.
- Asset Manager & DAM. Centralized media library with image transformation, focal points, and CDN delivery.
When each one wins
When Siteimprove wins
- Platform coverage matters. Siteimprove monitors 5 AI platforms; Storyblok 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 Storyblok wins
- Budget is the constraint. Storyblok starts at $0/mo vs Siteimprove's $∞/mo, so on a per-seat basis it's the cheaper way in.
- Visual Editor lets marketers click directly on the live preview to edit, the rare headless CMS that does not force marketers into a JSON form.
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 Siteimprove 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 Siteimprove over Storyblok
- Broader AI platform coverage. Siteimprove tracks visibility across 5 AI engines vs Storyblok's 0.
- Better-funded incumbent. Siteimprove has raised Acquired by Nordic Capital in 2020 (~€500M), giving it more runway and shipping velocity than Storyblok ($138M total; $80M Series C announced June 2024).
- More mature platform. Siteimprove (founded 2003) has had more time to harden the product than Storyblok (2017).
- What users praise most. Recognized as a G2 Leader in Digital Accessibility for six consecutive years, the longest streak in the category.
Reasons to pick Storyblok over Siteimprove
- Lower entry price. Storyblok publishes a clear entry tier at $0/mo; Siteimprove gates pricing.
- More plan flexibility. Storyblok offers 4 pricing tiers vs Siteimprove's 3, so there's a better chance one fits your team size.
- More verified reviews. Storyblok has 572 G2 reviews vs Siteimprove's none on file, so the average rating carries more weight.
- Faster product velocity. Storyblok has shipped 6 public launches in the last year vs Siteimprove's 0.
- Built for the LLM era. Storyblok was founded in 2017, built around AI search from day one; Siteimprove dates back to 2003 and is retrofitting.
- Wider integration ecosystem. Storyblok integrates with 12 tools; Siteimprove ships 7.
- What users praise most. Visual Editor lets marketers click directly on the live preview to edit, the rare headless CMS that does not force marketers into a JSON form.
Switching from one to the other
From Siteimprove to Storyblok
Export your saved queries and prompt panels from Siteimprove (most tools support CSV export). Most Storyblok setups can import the same query list in a single CSV upload. Expect 1-2 days of parallel running so you can validate Storyblok's data againstSiteimprove's; one to two weeks of full reconciliation before you cancel Siteimprove. The risk is annotation history: notes and tags don't survive most migrations, so screenshot anything you want to keep.
From Storyblok to Siteimprove
Same flow in reverse. Export from Storyblok, import to Siteimprove. 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
| Siteimprove | Storyblok | |
|---|---|---|
| Starts at (USD/mo) | Custom quote | $0/mo |
| Founded | 2003 | 2017 |
| Headquarters | Copenhagen, Denmark | Linz, Austria |
| Funding raised | Acquired by Nordic Capital in 2020 (~€500M) | $138M total; $80M Series C announced June 2024 |
| AI platforms tracked | 5 | — |
| G2 rating | 4.5 / 5 | 4.5 / 5 (572 reviews) |
| Named customers | 10 | 8 |
| 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.
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.
Storyblok — what users praise
- Visual Editor lets marketers click directly on the live preview to edit, the rare headless CMS that does not force marketers into a JSON form.
- Highest-rated enterprise headless CMS on G2 with 4.5 stars from 572 reviews and 71+ category badges in Spring 2026.
- ISO 27001 certified and SOC 2 Type II compliant, hosted on AWS Frankfurt with full GDPR DPA.
- Trusted by Tesla, Adidas, Netflix, Oatly, Decathlon, and Deliveroo for global multi-locale rollouts.
- Component-based content model and Story API map cleanly to Next.js, Nuxt, Astro, and SvelteKit.
Storyblok — what users complain about
- Component model has a real learning curve; teams new to headless need upfront planning before content modeling.
- JavaScript SDKs and documentation get repeat complaints about gaps and incompleteness from developers.
- Translation workflow is cumbersome with weak search and navigation across locales.
- UI slows down noticeably on larger spaces with many components or stories.
- Advanced roles, workflows, and AI SEO are gated behind Premium/Elite enterprise quotes.
A third option
Both Siteimprove and Storyblokare 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, Siteimprove or Storyblok?
Honestly: neither one fully solves the problem. Siteimprove and Storyblok 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 Siteimprove 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 Siteimprove and Storyblok cost?
Siteimprove starts at Custom quote. Storyblok starts at $0/mo. 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 Siteimprove and Storyblok cover?
Siteimprove covers 5 AI platforms. Storyblok covers an undisclosed number of. 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 Siteimprove and Storyblok actually improve your AI visibility, or just measure it?
Both Siteimprove and Storyblok 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 Siteimprove and Storyblok?
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.