WCAG 1.2.1 Audio-only and Video-only (Prerecorded): What It Means and How to Test It

Anton StewartAuthor Reviewed September 28, 2026 against the W3C Understanding document

What WCAG 1.2.1 Requires

Prerecorded audio-only files (a podcast) need a transcript, and prerecorded video-only files (a silent demo) need a transcript or an audio track describing what happens.

Can AccessBell Test This Automatically?

Not fully. Like most WCAG criteria that depend on meaning or context, this one needs a person to judge. AccessBell's report lists it for manual review rather than marking it pass or fail automatically, so it never gets missed.

How to Test It by Hand

Check that a text transcript is linked next to any audio-only or video-only content.

Common Failures

A podcast episode is embedded with no transcript link anywhere on the page.
A silent product demo video has no description of what is shown.

WCAG 1.2.1 Questions

What does WCAG 1.2.1 require?

Prerecorded audio-only files (a podcast) need a transcript, and prerecorded video-only files (a silent demo) need a transcript or an audio track describing what happens.

Can AccessBell test WCAG 1.2.1 automatically?

Not fully. This criterion needs a person to judge, so AccessBell's report lists it for manual review rather than marking it pass or fail on its own.

What level is WCAG 1.2.1?

Level A, added in WCAG 2.0.

Sources

This page explains a technical standard and is not legal advice. See our disclaimer.

1.2.1 Audio-only and Video-only (Prerecorded)