WAVE vs Siteimprove 2026: Free Checker vs Enterprise Platform
Updated June 2026 · 8 min read
The Core Distinction (Read This First)
WAVE and Siteimprove aren't really competing for the same buyer. WAVE is a free developer tool — you run it page by page in your browser to find WCAG issues. Siteimprove is an enterprise platform that crawls your entire site automatically and provides dashboards, workflows, and reporting for accessibility program managers. The right choice depends almost entirely on your organization size and budget.
WAVE vs Siteimprove: Side-by-Side
| Factor | WAVE (WebAIM) | Siteimprove |
|---|---|---|
| Type | Browser extension / auditor | Enterprise SaaS platform |
| Cost | Free (API: $4K+/yr) | $10,000–$50,000+/year |
| How it scans | Manual — one page at a time | Automated site crawler on schedule |
| Site-wide coverage? | No — page by page | Yes — full site crawl |
| Continuous monitoring? | No — manual only | Yes — scheduled re-scans |
| Issue detection | ~57–65% of WCAG 2.1 AA | ~57–65% of WCAG 2.1 AA |
| Historical tracking | None | Full trend dashboards |
| Team workflows | None | Issue assignments, remediation tracking |
| Integrations | None | CMS, Jira, workflow tools |
| Best for | Developers, individual audits | Enterprise accessibility programs |
What WAVE Is (And Who It's For)
WAVE (Web Accessibility Evaluation Tool) is built by WebAIM — the Web Accessibility in Mind non-profit at Utah State University that has trained accessibility professionals since 1999. The free browser extension for Chrome and Firefox is the most widely used accessibility auditing tool in the world.
WAVE works by analyzing your page's HTML and visually overlaying accessibility indicators directly on the page. It marks errors, alerts, features, and structural elements so developers and auditors can see exactly what's broken and where.
✅ WAVE strengths
- Completely free — no credit card, no account required
- Visual, intuitive interface great for developers and non-technical stakeholders
- Instantly shows violations in context on the live page
- Trusted by accessibility professionals and auditors worldwide
- No data sent to external servers — runs entirely client-side
❌ WAVE limitations
- Manual — you must visit each page and run the extension
- No site-wide crawling or continuous monitoring
- No issue tracking, assignment, or remediation workflow
- No historical data or trend analysis
- Doesn't scan authenticated pages without workarounds
What Siteimprove Is (And Who It's For)
Siteimprove is a Danish enterprise digital quality platform founded in 2003. It originally focused on broken link detection and content quality, and has grown into a comprehensive platform that combines accessibility monitoring, SEO insights, content analytics, and policy compliance into a single dashboard.
Siteimprove crawls your website on an automated schedule, identifies WCAG violations across all pages, tracks issue resolution over time, and provides detailed reports for stakeholders. It's designed for accessibility program managers, digital directors, and enterprise compliance teams — not individual developers.
✅ Siteimprove strengths
- Automated site-wide crawling — no manual page-by-page work
- Historical trend tracking and accessibility score dashboards
- Team workflow features: issue assignment, status tracking
- Multi-site management for enterprise portfolios
- Integrations with CMS platforms, Jira, and enterprise tools
- Content quality, SEO, and governance features alongside accessibility
❌ Siteimprove limitations
- Enterprise pricing — $10K+/year, opaque custom contracts
- Complex platform with steep learning curve
- Same automated detection rate as free tools (~57–65% of WCAG issues)
- Crawl frequency may miss rapid content changes
- Overkill for small businesses or teams without accessibility programs
WAVE vs Siteimprove: Which to Use When
Use WAVE when…
- You're a developer auditing specific pages
- You need a free tool with zero budget
- You're doing a one-time audit or client assessment
- You want immediate visual feedback on a live page
- You're a small business needing quick accessibility checks
Use Siteimprove when…
- You manage a large organization with an accessibility program
- You need site-wide automated monitoring across 100s of pages
- You have a team managing accessibility remediation workflows
- You need historical tracking for compliance reporting
- You're in government, higher ed, or enterprise with compliance mandates
The Middle Ground: Siteimprove Alternatives at Lower Cost
If you need more than WAVE's manual page-by-page approach but can't justify Siteimprove's enterprise pricing, several tools fill the gap:
RatedWithAI — Automated axe-core scanning at $29/month
$29/month
Automated site-wide scanning using axe-core (the industry standard engine used by Microsoft, Google, and the US government). Monitors your full site continuously and alerts you to WCAG violations — at $29/month vs. Siteimprove's $10K+/year. Ideal for small to mid-size businesses that need automated monitoring without enterprise pricing.
Start Free Scan →Pope Tech — Mid-Market Automated Scanning
$500–$2,000+/year
Pope Tech offers site-wide automated accessibility scanning with dashboards and reporting at a fraction of Siteimprove's cost. Built specifically for web teams at universities and mid-size organizations. Uses axe-core under the hood. Good fit for teams that need more structure than WAVE but don't need Siteimprove's full platform.
Silktide — Mid-Market Digital Quality Platform
$5,000–$20,000+/year
Silktide combines accessibility, privacy, content quality, and SEO monitoring similar to Siteimprove but with more transparent pricing and a more modern UX. Strong fit for mid-market organizations that want Siteimprove-style capabilities without Siteimprove's enterprise price tag.
Get site-wide scanning without the enterprise price tag
Free axe-core scan for any URL — then $29/month for continuous site monitoring. More than WAVE's page-by-page manual scans. A fraction of Siteimprove's cost.
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Frequently Asked Questions
Is WAVE free forever?
Yes. WAVE's browser extension for Chrome and Firefox has been free since its launch and WebAIM has not indicated any plans to charge for it. WebAIM is a non-profit organization at Utah State University. They offer a paid WAVE API for bulk automated scanning, but the standard browser extension that most people use is free indefinitely.
How much does Siteimprove cost?
Siteimprove does not publish pricing on their website and requires a sales conversation for quotes. Based on publicly available information and user reports, small organization contracts typically start around $10,000–$15,000/year. Enterprise customers with multiple sites and advanced modules (SEO, content, governance) commonly pay $30,000–$80,000+/year. Pricing scales based on number of pages, sites, users, and modules selected.
Can WAVE scan my whole website automatically?
No. WAVE's free browser extension is a manual, page-by-page tool — you must visit each URL and run the extension. WebAIM offers the WAVE API for automated bulk scanning, but that starts at approximately $4,000/year and requires developer integration. For automated site-wide scanning at a lower price point, tools like RatedWithAI ($29/month), Pope Tech, or Silktide are more practical alternatives.
What does Siteimprove check beyond accessibility?
Siteimprove is a digital quality platform that goes well beyond accessibility. It also checks for: broken links and content errors (its original core feature), SEO performance and keyword tracking, privacy and cookie compliance, content governance and policy enforcement, performance metrics, and brand consistency. If you need a single platform for digital quality across multiple dimensions — not just accessibility — Siteimprove's broader scope may justify its cost for enterprise organizations.
Which tool do accessibility professionals prefer: WAVE or Siteimprove?
Accessibility professionals typically use WAVE (or the axe browser extension) for individual page audits and manual testing — it gives the most granular, detailed view of specific issues on a live page. For organizational compliance programs and executive reporting, enterprise tools like Siteimprove serve a different function. Most accessibility professionals use multiple tools: WAVE for developer-level auditing, axe DevTools for CI/CD integration, and a platform tool for site-wide monitoring and stakeholder reporting.