Level APerceivableTested by A11yied
WCAG 1.2.3: Audio Description or Media Alternative (Prerecorded)
1.2 Time-based Media
What Does This Criterion Require?
An alternative or audio description is provided for prerecorded video content.
Technical Details
| WCAG Level | A |
|---|---|
| WCAG Version | 2.1, 2.2 |
| POUR Principle | Perceivable |
| Guideline | 1.2 Time-based Media |
| A11yied Testing | Partially Automated |
How A11yied Tests This Criterion
A11yied automatically validates WCAG 1.2.3 using browser-based testing that analyzes your page in real-time.
Implementation: multimedia.ts
Testing Notes:
See 1.2.1 notes
Last verified: 10/12/2025
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Official WCAG Reference
View the official WCAG specification for 1.2.3 Audio Description or Media Alternative (Prerecorded) on the W3C website for complete technical details and implementation guidance.
Read W3C Understanding 1.2.3→