How do I test for WCAG 1.4.4 compliance?

To test Resize Text: use automated tools like AltorLab's scanner for initial detection, then manually verify with keyboard navigation and screen reader testing. Check the specific failure modes described in the WCAG documentation.

🔵 Level AA

WCAG 1.4.4: Resize Text

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Success Criterion 1.4.4 — Level AA

Quick Answer

Text must be resizable up to 200% without loss of content or functionality.

Why It Matters

Users with low vision increase browser text size. Fixed-size text becomes unreadable at 200%.

How to Audit

Run an automated accessibility scan to detect common Resize Text failures. Then manually verify with: keyboard-only navigation, a screen reader (VoiceOver on Mac, NVDA on Windows), and browser developer tools. Automated tools catch approximately 40% of Resize Text issues — manual testing is essential.

How to Fix

Use relative units (rem, em, %) not px for font sizes. Test at 200% browser zoom.

Frequently Asked Questions

What is WCAG 1.4.4 Resize Text?

Text must be resizable up to 200% without loss of content or functionality.

Is WCAG 1.4.4 required for ADA compliance?

WCAG 2.1 Level AA is the standard referenced in most ADA website lawsuits and DOJ guidance. All Level AA criteria including this one are relevant to legal compliance.

How do I fix WCAG 1.4.4 violations?

Use relative units (rem, em, %) not px for font sizes. Test at 200% browser zoom.

Disclaimer: This guide is for informational purposes only and does not constitute legal advice. Consult a qualified ADA/accessibility attorney for your specific compliance situation.

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