All WCAG criteria
WCAG 2.1·Perceivable·1.2 Time-based Media

1.2.2 Captions (Prerecorded)

Level A

All prerecorded video with audio needs synchronized captions.

Why it matters

Captions are the primary way deaf and hard-of-hearing users access video content.

Common failure
<video src="/intro.mp4" controls></video>
Accessible version
<video src="/intro.mp4" controls>
  <track kind="captions" src="/intro.vtt" srclang="en" default>
</video>

How OnlyEnable handles this

Source-code fix required. No widget can solve this — it requires changes to your content or markup. Our remediation team can help.

Related criteria in 1.2 Time-based Media

1.2.1 · Level A
Audio-only and Video-only (Prerecorded)
1.2.3 · Level A
Audio Description or Media Alternative (Prerecorded)
1.2.4 · Level AA
Captions (Live)
1.2.5 · Level AA
Audio Description (Prerecorded)