Is an accessibility score enough to prove WCAG compliance?

No. A score summarizes selected automated checks, while WCAG conformance depends on specific criteria and user flows that automation cannot fully judge. A store can score well and still contain a keyboard trap or unusable checkout. Use scores for trend detection, then rely on criterion-level findings, manual testing, verified repairs, and dated records for evidence.

What scores are good for

A consistent scoring method can show that a release changed the storefront and help teams compare templates. It is useful for triage, but only when the underlying rules and pages remain visible.

What proof looks like

Keep the issue, URL, element, criterion, severity, test method, repair, and passing retest. Include manual checks for keyboard flow, focus behavior, announcements, and task completion that scanners cannot settle alone.