Why it matters
Deaf users cannot hear audio content, and blind users cannot see video-only content. Alternatives ensure everyone can access the information.
Common violations
- Podcasts without transcripts
- Background music videos without descriptions
- Audio announcements with no text alternative
- Silent instructional videos without narration or transcript
Code examples
Bad
<audio src="podcast.mp3" controls></audio>Good
<audio src="podcast.mp3" controls></audio>
<a href="podcast-transcript.html">Read transcript</a>How to fix
Provide text transcripts for audio content and either audio descriptions or text transcripts for video-only content.
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