What the W3C standard covers
The W3C’s WCAG 2.2 Recommendation sets success criteria for making web content more accessible, organized around perceivable, operable, understandable, and robust principles. Criteria include requirements relevant to keyboard operation, labels, contrast, focus, and target sizing.
The standard is not a conversion-rate playbook, and a limited interface review should not be presented as full conformance. Its value for a CRO program is that some usability concerns have explicit accessibility criteria rather than being left to a reviewer’s aesthetic judgment.
Check the whole task under varied input
Use a real task such as selecting a service, completing a form, and understanding a confirmation. Test keyboard navigation and focus order, visible labels, error recovery, contrast, and touch targets alongside the questions the page is meant to answer.
Do not assume automated scans cover every barrier. Combine appropriate tooling with manual checks and assistive-technology expertise where scope requires it. Make sure customer recordings or research tools are configured with privacy safeguards; usability evidence should not expose sensitive form data.
Treat accessibility findings as actionable evidence
Prioritize barriers by task impact and the needs of affected users, then document remediation ownership and verification. A change that improves clarity for one person may help others too, but the rationale should be accessibility and usable task completion—not an unsupported conversion-lift claim.
For Conversion Rate Optimization, WCAG provides a disciplined reference for parts of the experience that must be considered alongside analytics and customer feedback. Use the official criteria accurately, define the audit scope, and seek qualified review before making claims about compliance or conformance.
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