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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.

Filters

Level

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  • Level AAA

Principles

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  • Understandable

8 success criteria found for Level AAA and Understandable principle and

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 3.2.5 Change on Request

Level Level AAA, WCAG principle: Understandable

Assigned to the following themes: FORMS KEYBOARD

Major changes (like open dialog, navigate, submit) must only happen when explicitly requested.

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