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WCAG Explorer (beta)

This resource is designed for anyone eager to master digital accessibility. Explore WCAG success criteria through clear, easy-to-understand descriptions. We owe a special "hat tip" to Johannes Lehner’s WCAG Card Deck, which served as the inspiration for this project.

We plan to expand this library over time, so please check back regularly for updates.

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Level

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  • Level AAA

Theme

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  • Wording

11 success criteria found for Level AAA and Wording theme

Success criterion 1.2.7 Extended Audio Description (Prerecorded)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY WORDING

Prerecorded videos must include extended audio descriptions if important visual content like:

  • important visual details,
  • on-screen text not spoken aloud, or
  • scenes without natural audio breaks

can't be described during normal playback.

Success criterion 1.2.8 Media Alternative (Prerecorded)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY WORDING

Prerecorded videos must have a full text alternative that includes:

  • all speech,
  • relevant sound effects (like music, alarms, or laughter), and
  • important visual content,

even if captions and audio descriptions are already available.

Success criterion 1.2.9 Audio-only (Live)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY WORDING

Live audio-only content must include a real-time text alternative, such as:

  • captions, or
  • live transcripts

Success criterion 2.4.9 Link Purpose (Link Only)

Level Level AAA, WCAG principle: Operable

Assigned to the following themes: CODE AND LABELS WORDING

The purpose of each link must be clear:

  • from the link text alone
  • without relying on surrounding context.

Success criterion 3.1.3 Unusual Words

Level Level AAA, WCAG principle: Understandable

Assigned to the following themes: WORDING

Unusual terms, jargon, or figurative language should be:

  • avoided when possible, or
  • explained the first time they appear

Success criterion 3.1.4 Abbreviations

Level Level AAA, WCAG principle: Understandable

Assigned to the following themes: WORDING

Abbreviations and acronyms should be:

  • avoided when possible, or
  • explained the first time they appear

Success criterion 3.1.5 Reading Level

Level Level AAA, WCAG principle: Understandable

Assigned to the following themes: WORDING

If content requires reading skills above lower secondary education (around 9th grade), provide:

  • a simpler version,
  • a summary,
  • a visual aid, or
  • a spoken version

to help with understanding.

Success criterion 3.1.6 Pronunciation

Level Level AAA, WCAG principle: Understandable

Assigned to the following themes: WORDING

If a word can be pronounced in different ways with different meanings, the intended meaning must be clarified to avoid confusion or ambiguity.

Success criterion 3.3.5 Help

Level Level AAA, WCAG principle: Understandable

Assigned to the following themes: FORMS WORDING

Provide additional help (like text instructions, help links, or tooltips) when label alone might be ambiguous or confusing.

Success criterion 3.3.6 Error Prevention (All)

Level Level AAA, WCAG principle: Understandable

Assigned to the following themes: FORMS WORDING

Before submitting, all forms must allow:

  • reviewing the input,
  • correcting mistakes, or
  • confirming