Pick
Marketo Engage
Pick Marketo Engage if you need broader AI platform coverage (6 platforms vs 5); and you want the better-funded company (Acquired by Adobe in 2018 for $4.75B (previously acquired by Vista Equity Partners in 2016 for $1.79B)).
Head-to-head review · Updated June 2026
Marketo Engage vs Siteimprove: which one wins in 2026?
Marketo Engage 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. Marketo Engage has raised Acquired by Adobe in 2018 for $4.75B (previously acquired by Vista Equity Partners in 2016 for $1.79B), Siteimprove has raised Acquired by Nordic Capital in 2020 (~€500M); Marketo Engage is the more-funded incumbent; Siteimprove is the leaner challenger.
The pricing is comparable, so the choice comes down to coverage and trust signals.
The verdict
Pick
Siteimprove
Siteimprove 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 Marketo Engage
Marketo Engage has raised Acquired by Adobe in 2018 for $4.75B (previously acquired by Vista Equity Partners in 2016 for $1.79B) (Acquired by Adobe (October 2018, $4.75B)). Founded by Phil Fernandez, based in San Jose, CA. On their site they list 10 named customers including Alphabet (Google), Shell, Walgreens Boots Alliance, Baker Hughes. They cover 6 AI platforms, more than Siteimprove's 5. Pricing starts at $1,095/mo.
Enterprise marketing automation and demand-gen platform by Adobe.
What people praise
- Deep B2B lead management with sophisticated scoring, lifecycle stages, and multi-step nurture programs
- Native bi-directional sync with Salesforce, Microsoft Dynamics, and Veeva CRMs
- Smart lists, smart campaigns, and tokens enable custom automation at enterprise scale
- Backed by Adobe with SOC 2, ISO 27001, GDPR, CCPA, and HIPAA-Ready Service options
Where it falls short
- Steepest learning curve among major marketing automation platforms, training is mandatory for new users
- UI feels dated despite Adobe ownership, simple tasks take more steps than newer platforms
- Pricing starts in the five-figure range annually, prohibitive for most SMBs
- Reporting is slow and requires heavy setup before useful insights surface
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 (Marketo Engage covers 6, more than them). 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
Marketo Engage
Growth
~$895/mo to $1,195/mo
- Core marketing automation
- Email marketing
- Basic lead management
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
Marketo Engage
Select
Custom
- Core marketing automation
- Segmentation
- Standard CRM sync
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
Marketo Engage
Prime
~$3,175/mo
- Advanced lead scoring
- Revenue attribution
- Smart lists and campaigns
- Account-based marketing
Siteimprove
Government and Higher Ed
Custom quote
- Accessibility compliance (WCAG 2.2 AA, EAA)
- Custom integrations and onboarding
- Dedicated success management
Tier 4
Marketo Engage
Ultimate
~$6,195/mo
- Advanced analytics
- Custom objects
- Predictive content
- Premium support
Siteimprove
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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 Marketo Engage
- Lead Management. Lead capture, scoring, lifecycle tracking, and routing across the full B2B funnel
- Account-Based Marketing. Target account lists, account scoring, and synchronized sales/marketing playbooks
- Marketing Automation. Smart campaigns, multi-step nurture flows, triggers, and behavioral segmentation
- Revenue Attribution. Multi-touch attribution tying marketing spend to pipeline and closed revenue
- Predictive Content. AI-driven content recommendations based on persona and lifecycle stage
- Email Marketing. Drag-and-drop email builder, A/B testing, and personalization tokens
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 Marketo Engage wins
- Budget is the constraint. Marketo Engage starts at $1,095/mo vs Siteimprove's $∞/mo, so on a per-seat basis it's the cheaper way in.
- Platform coverage matters. Marketo Engage monitors 6 AI platforms; Siteimprove covers 5.
- You want the better-funded incumbent. Marketo Engage has raised Acquired by Adobe in 2018 for $4.75B (previously acquired by Vista Equity Partners in 2016 for $1.79B), giving it more runway and shipping velocity.
When Siteimprove wins
- 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 Marketo Engage 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 Marketo Engage over Siteimprove
- Lower entry price. Marketo Engage publishes a clear entry tier at $1,095/mo; Siteimprove gates pricing.
- More plan flexibility. Marketo Engage offers 4 pricing tiers vs Siteimprove's 3, so there's a better chance one fits your team size.
- Broader AI platform coverage. Marketo Engage tracks visibility across 6 AI engines vs Siteimprove's 5.
- Better-funded incumbent. Marketo Engage has raised Acquired by Adobe in 2018 for $4.75B (previously acquired by Vista Equity Partners in 2016 for $1.79B), giving it more runway and shipping velocity than Siteimprove (Acquired by Nordic Capital in 2020 (~€500M)).
- HIPAA-ready. Marketo Engage is HIPAA compliant; Siteimprove is not.
- More verified reviews. Marketo Engage has 515 G2 reviews vs Siteimprove's none on file, so the average rating carries more weight.
- Faster product velocity. Marketo Engage has shipped 6 public launches in the last year vs Siteimprove's 0.
- Wider integration ecosystem. Marketo Engage integrates with 11 tools; Siteimprove ships 7.
- What users praise most. Deep B2B lead management with sophisticated scoring, lifecycle stages, and multi-step nurture programs
Reasons to pick Siteimprove over Marketo Engage
- Higher G2 rating. Siteimprove averages 4.5/5 on G2; Marketo Engage averages 4.2.
- What users praise most. Recognized as a G2 Leader in Digital Accessibility for six consecutive years, the longest streak in the category.
- EU data residency. Siteimprove is HQ'd in Copenhagen, Denmark, which simplifies GDPR data-processor agreements for European buyers.
Switching from one to the other
From Marketo Engage to Siteimprove
Export your saved queries and prompt panels from Marketo Engage (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 againstMarketo Engage's; one to two weeks of full reconciliation before you cancel Marketo Engage. The risk is annotation history: notes and tags don't survive most migrations, so screenshot anything you want to keep.
From Siteimprove to Marketo Engage
Same flow in reverse. Export from Siteimprove, import to Marketo Engage. 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
| Marketo Engage | Siteimprove | |
|---|---|---|
| Starts at (USD/mo) | $1,095/mo | Custom quote |
| Founded | 2006 | 2003 |
| Headquarters | San Jose, CA | Copenhagen, Denmark |
| Funding raised | Acquired by Adobe in 2018 for $4.75B (previously acquired by Vista Equity Partners in 2016 for $1.79B) | Acquired by Nordic Capital in 2020 (~€500M) |
| AI platforms tracked | 6 | 5 |
| G2 rating | 4.2 / 5 (515 reviews) | 4.5 / 5 |
| Named customers | 10 | 10 |
| SOC 2 Type 2 | ✓ Yes | ✓ Yes |
| GDPR | ✓ Yes | ✓ Yes |
| HIPAA | ✓ Yes | — |
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.
Marketo Engage — what users praise
- Deep B2B lead management with sophisticated scoring, lifecycle stages, and multi-step nurture programs
- Native bi-directional sync with Salesforce, Microsoft Dynamics, and Veeva CRMs
- Smart lists, smart campaigns, and tokens enable custom automation at enterprise scale
- Backed by Adobe with SOC 2, ISO 27001, GDPR, CCPA, and HIPAA-Ready Service options
- Strong partner ecosystem including Accenture, Deloitte Digital, Informatica, and Mulesoft
Marketo Engage — what users complain about
- Steepest learning curve among major marketing automation platforms, training is mandatory for new users
- UI feels dated despite Adobe ownership, simple tasks take more steps than newer platforms
- Pricing starts in the five-figure range annually, prohibitive for most SMBs
- Reporting is slow and requires heavy setup before useful insights surface
- No public pricing, must engage sales for any tier
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 Marketo Engage 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, Marketo Engage or Siteimprove?
Honestly: neither one fully solves the problem. Marketo Engage 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 Marketo Engage 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 Marketo Engage and Siteimprove cost?
Marketo Engage starts at $1,095/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 Marketo Engage and Siteimprove cover?
Marketo Engage covers 6 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 Marketo Engage and Siteimprove actually improve your AI visibility, or just measure it?
Both Marketo Engage 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 Marketo Engage 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.