What the checker can detect
Automated axe-core checks can identify many repeatable technical issues quickly, including missing accessible names, invalid ARIA, insufficient contrast, duplicate IDs, and form-label problems.
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Accessibility guide
Free WCAG Checker for Accessibility Triage
Use AccessibilityScore.in to scan a public HTTPS page for common WCAG accessibility issues and get a practical score with issue-level guidance.
Short Answer
A WCAG checker is useful for finding common code-level failures such as missing labels, color contrast problems, heading issues, and ARIA misuse. It should be treated as triage, not a complete WCAG conformance decision.
What still needs manual review
Keyboard navigation, focus order, screen reader meaning, page purpose, error recovery, content clarity, and full task flows require human judgment and assistive technology testing.
Best next step
Use the automated report to remove obvious blockers, then validate important journeys through a manual WCAG audit before making compliance claims.
Common Questions
Can a WCAG checker prove conformance?
No. A checker can find some WCAG failures, but conformance requires evaluating all applicable success criteria, including criteria that automated tools cannot reliably judge.
Which WCAG version should teams use?
Most modern programs should plan around WCAG 2.2 while understanding any legal, procurement, or contractual requirements that name WCAG 2.1 or Section 508.