Perceivable
1.2.3 Audio Description or Media Alternative (Prerecorded)
Recorded video needs either audio description of important visual information or a full text version of what is seen and heard.
Who it helps
People who are blind or have low vision.
Failures we see most
- Training videos where key steps only appear on screen
- Charts in a video that are never described
How it gets tested
No automated tool can judge 1.2.3 reliably, so a specialist tests it by hand, with a keyboard and a screen reader where that applies.
How we fix it
A specialist fixes this in your site's code or content, and we re-test the page before you sign off.
Official text: W3C, Understanding 1.2.3 Audio Description or Media Alternative (Prerecorded). Checks listed from axe-core 4.14.0.
Related criteria
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