WCAG success criteria

The full list of success criteria the tool scores against — WCAG 2.0, 2.1, 2.2, and Section 508 — grouped by principle. Choose a standard, expand a guideline. Each number links to the W3C specification; “Understanding” links to the official explanation.

1. Perceivable

2. Operable

3. Understandable

4. Robust

Source: Web Content Accessibility Guidelines (WCAG) by the W3C. Learn how the tool scores against these in our methodology.

Chinese titles for the success criteria, guidelines and principles are referenced from the W3C authorized translation of Web Content Accessibility Guidelines (WCAG) 2.1 (Zhejiang University). W3C authorized translation

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WCAG success criteria

1. Perceivable

1.1 Text Alternatives (1)▾

1.2 Time-based Media (5)▾

1.3 Adaptable (5)▾

1.4 Distinguishable (9)▾

2. Operable

2.1 Keyboard Accessible (3)▾

2.2 Enough Time (2)▾

2.3 Seizures and Physical Reactions (1)▾

2.4 Navigable (8)▾

2.5 Input Modalities (6)▾

3. Understandable

3.1 Readable (2)▾

3.2 Predictable (5)▾

3.3 Input Assistance (6)▾

4. Robust

4.1 Compatible (2)▾

WCAG success criteria

1. Perceivable

1.1 Text Alternatives (1)▾

1.2 Time-based Media (5)▾

1.3 Adaptable (5)▾

1.4 Distinguishable (9)▾

2. Operable

2.1 Keyboard Accessible (3)▾

2.2 Enough Time (2)▾

2.3 Seizures and Physical Reactions (1)▾

2.4 Navigable (8)▾

2.5 Input Modalities (6)▾

3. Understandable

3.1 Readable (2)▾

3.2 Predictable (5)▾

3.3 Input Assistance (6)▾

4. Robust

4.1 Compatible (2)▾