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AccessAudit Free Scan is a free compliance management tool by AccessAudit. Knox is a commercial compliance management tool by Knox Systems. Compare features, ratings, integrations, and community reviews side by side to find the best compliance management fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Compliance teams and legal departments running fast accessibility audits on public-facing web properties should start with AccessAudit Free Scan because it requires zero signup and returns a WCAG 2.1 score in seconds, letting you baseline hundreds of URLs without vendor lock-in. The no-friction entry point means you'll actually run scans instead of getting stuck in procurement; the tradeoff is you're limited to URL-level scanning without the deeper remediation tracking or continuous monitoring a paid platform provides. Skip this if your org needs detailed remediation workflows, role-based reporting, or integration with your dev pipeline.
Mid-market and enterprise teams pursuing FedRAMP authorization without agency sponsorship should build Knox into their compliance path. The platform maps controls to NIST requirements automatically and generates ATOs across AWS, Azure, and GCP; its 15 existing authorizations mean you're following a pattern that regulators already accept. Skip Knox if your concern is continuous monitoring and threat detection; it prioritizes the compliance gate over runtime security posture.
Free web accessibility scanner for WCAG 2.1 compliance testing
FedRAMP compliance automation platform for SaaS applications
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Common questions about comparing AccessAudit Free Scan vs Knox for your compliance management needs.
AccessAudit Free Scan: Free web accessibility scanner for WCAG 2.1 compliance testing. built by AccessAudit. headquartered in United Kingdom. Core capabilities include WCAG 2.1 compliance scanning, Instant accessibility score generation, Comprehensive issue identification..
Knox: FedRAMP compliance automation platform for SaaS applications. built by Knox Systems. headquartered in United States. Core capabilities include FedRAMP Moderate, High, and DISA IL4 authorization, AI-powered control mapping and vulnerability detection, Real-time compliance monitoring and remediation..
Both serve the Compliance Management market but differ in approach, feature depth, and target audience.
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