Level AUnderstandableTested by A11yied
WCAG 3.2.1: On Focus
3.2 Predictable
What Does This Criterion Require?
When any user interface component receives focus, it does not initiate a change of context.
Technical Details
| WCAG Level | A |
|---|---|
| WCAG Version | 2.1, 2.2 |
| POUR Principle | Understandable |
| Guideline | 3.2 Predictable |
| A11yied Testing | Fully Automated |
How A11yied Tests This Criterion
A11yied automatically validates WCAG 3.2.1 using browser-based testing that analyzes your page in real-time.
Implementation: context.ts
Test This Criterion on Your Site
Use A11yied to scan your website and identify WCAG 3.2.1 violations automatically. Get detailed reports with code examples and fix recommendations.
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Official WCAG Reference
View the official WCAG specification for 3.2.1 On Focus on the W3C website for complete technical details and implementation guidance.
Read W3C Understanding 3.2.1→