| 1.1 Text Alternatives |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/text-equiv.html |
https://www.w3.org/WAI/WCAG22/Understanding/text-alternatives.html |
| 1.1.1 Non-text Content |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/ text-equiv-all.html |
https://www.w3.org/WAI/WCAG22/Understanding/non-text-content.html |
| 1.2 Time-based Media |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv.html |
https://www.w3.org/WAI/WCAG22/Understanding/time-based-media.html |
| 1.2.1 Audio-only and Video-only (Prerecorded) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-av-only-alt.html |
https://www.w3.org/WAI/WCAG22/Understanding/audio-only-and-video-only-prerecorded.html |
| 1.2.2 Captions (Prerecorded) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-captions.html |
https://www.w3.org/WAI/WCAG22/Understanding/captions-prerecorded.html |
| 1.2.3 Audio Description or Media Alternative (Prerecorded) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-audio-desc.html |
https://www.w3.org/WAI/WCAG22/Understanding/audio-description-or-media-alternative-prerecorded.html |
| 1.2.4 Captions (Live) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-real-time-captions.html |
https://www.w3.org/WAI/WCAG22/Understanding/captions-live.html |
| 1.2.5 Audio Description (Prerecorded) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-audio-desc-only.html |
https://www.w3.org/WAI/WCAG22/Understanding/audio-description-prerecorded.html |
| 1.2.6 Sign Language (Prerecorded) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-sign.html |
https://www.w3.org/WAI/WCAG22/Understanding/sign-language-prerecorded.html |
| 1.2.7 Extended Audio Description (Prerecorded) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-extended-ad.html |
https://www.w3.org/WAI/WCAG22/Understanding/extended-audio-description-prerecorded.html |
| 1.2.8 Media Alternative (Prerecorded) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-text-doc.html |
https://www.w3.org/WAI/WCAG22/Understanding/media-alternative-prerecorded.html |
| 1.2.9 Audio-only (Live) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-live-audio-only.html |
https://www.w3.org/WAI/WCAG22/Understanding/audio-only-live.html |
| 1.3 Adaptable |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/content-structure-separation.html |
https://www.w3.org/WAI/WCAG22/Understanding/adaptable.html |
| 1.3.1 Info and Relationships |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/content-structure-separation-programmatic.html |
https://www.w3.org/WAI/WCAG22/Understanding/info-and-relationships.html |
| 1.3.2 Meaningful Sequence |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/content-structure-separation-sequence.html |
https://www.w3.org/WAI/WCAG22/Understanding/meaningful-sequence.html |
| 1.3.3 Sensory Characteristics |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/content-structure-separation-understanding.html |
https://www.w3.org/WAI/WCAG22/Understanding/sensory-characteristics.html |
| 1.3.4 Orientation |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/orientation.html |
| 1.3.5 Identify Input Purpose |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/identify-input-purpose.html |
| 1.3.6 Identify Purpose |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/identify-purpose.html |
| 1.4 Distinguishable |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast.html |
https://www.w3.org/WAI/WCAG22/Understanding/distinguishable.html |
| 1.4.1 Use of Color |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-without-color.html |
https://www.w3.org/WAI/WCAG22/Understanding/use-of-color.html |
| 1.4.2 Audio Control |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-dis-audio.html |
https://www.w3.org/WAI/WCAG22/Understanding/audio-control.html |
| 1.4.3 Contrast (Minimum) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html |
https://www.w3.org/WAI/WCAG22/Understanding/contrast-minimum.html |
| 1.4.4 Resize Text |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-scale.html |
https://www.w3.org/WAI/WCAG22/Understanding/resize-text.html |
| 1.4.5 Images of Text |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-text-presentation.html |
https://www.w3.org/WAI/WCAG22/Understanding/images-of-text.html |
| 1.4.6 Contrast (Enhanced) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast7.html |
https://www.w3.org/WAI/WCAG22/Understanding/contrast-enhanced.html |
| 1.4.7 Low or No Background Audio |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-noaudio.html |
https://www.w3.org/WAI/WCAG22/Understanding/low-or-no-background-audio.html |
| 1.4.8 Visual Presentation |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-visual-presentation.html |
https://www.w3.org/WAI/WCAG22/Understanding/visual-presentation.html |
| 1.4.9 Images of Text (No Exception) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-text-images.html |
https://www.w3.org/WAI/WCAG22/Understanding/images-of-text-no-exception.html |
| 1.4.10 Reflow |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/reflow.html |
| 1.4.11 Non-text Contrast |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/non-text-contrast.html |
| 1.4.12 Text Spacing |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/text-spacing.html |
| 1.4.13 Content on Hover or Focus |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/content-on-hover-or-focus.html |
| 2.1 Keyboard Accessible |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/keyboard-operation.html |
https://www.w3.org/WAI/WCAG22/Understanding/keyboard-accessible.html |
| 2.1.1 Keyboard |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/keyboard-operation-keyboard-operable.html |
https://www.w3.org/WAI/WCAG22/Understanding/keyboard.html |
| 2.1.2 No Keyboard Trap |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/keyboard-operation-trapping.html |
https://www.w3.org/WAI/WCAG22/Understanding/no-keyboard-trap.html |
| 2.1.3 Keyboard (No Exception) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/keyboard-operation-all-funcs.html |
https://www.w3.org/WAI/WCAG22/Understanding/keyboard-no-exception.html |
| 2.1.4 Character Key Shortcuts |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/character-key-shortcuts.html |
| 2.2 Enough Time |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/time-limits.html |
https://www.w3.org/WAI/WCAG22/Understanding/enough-time.html |
| 2.2.1 Timing Adjustable |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/time-limits-required-behaviors.html |
https://www.w3.org/WAI/WCAG22/Understanding/timing-adjustable.html |
| 2.2.2 Pause, Stop, Hide |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/time-limits-pause.html |
https://www.w3.org/WAI/WCAG22/Understanding/pause-stop-hide.html |
| 2.2.3 No Timing |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/time-limits-no-exceptions.html |
https://www.w3.org/WAI/WCAG22/Understanding/no-timing.html |
| 2.2.4 Interruptions |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/time-limits-postponed.html |
https://www.w3.org/WAI/WCAG22/Understanding/interruptions.html |
| 2.2.5 Re-authenticating |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/time-limits-server-timeout.html |
https://www.w3.org/WAI/WCAG22/Understanding/re-authenticating.html |
| 2.2.6 Timeouts |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/timeouts.html |
| 2.3 Seizures |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/seizure.html |
https://www.w3.org/WAI/WCAG22/Understanding/seizures-and-physical-reactions.html |
| 2.3.1 Three Flashes or Below Threshold |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/seizure-does-not-violate.html |
https://www.w3.org/WAI/WCAG22/Understanding/three-flashes-or-below-threshold.html |
| 2.3.2 Three Flashes |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/seizure-three-times.html |
https://www.w3.org/WAI/WCAG22/Understanding/three-flashes.html |
| 2.3.3 Animation from Interactions |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/animation-from-interactions.html |
| 2.4 Navigable |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms.html |
https://www.w3.org/WAI/WCAG22/Understanding/navigable.html |
| 2.4.1 Bypass Blocks |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-skip.html |
https://www.w3.org/WAI/WCAG22/Understanding/bypass-blocks.html |
| 2.4.2 Page Titled |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-title.html |
https://www.w3.org/WAI/WCAG22/Understanding/page-titled.html |
| 2.4.3 Focus Order |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-focus-order.html |
https://www.w3.org/WAI/WCAG22/Understanding/focus-order.html |
| 2.4.4 Link Purpose (In Context) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-refs.html |
https://www.w3.org/WAI/WCAG22/Understanding/link-purpose-in-context.html |
| 2.4.5 Multiple Ways |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-mult-loc.html |
https://www.w3.org/WAI/WCAG22/Understanding/multiple-ways.html |
| 2.4.6 Headings and Labels |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-descriptive.html |
https://www.w3.org/WAI/WCAG22/Understanding/headings-and-labels.html |
| 2.4.7 Focus Visible |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-focus-visible.html |
https://www.w3.org/WAI/WCAG22/Understanding/focus-visible.html |
| 2.4.8 Location |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-location.html |
https://www.w3.org/WAI/WCAG22/Understanding/location.html |
| 2.4.9 Link Purpose (Link Only) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-link.html |
https://www.w3.org/WAI/WCAG22/Understanding/link-purpose-link-only.html |
| 2.4.10 Section Headings |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-headings.html |
https://www.w3.org/WAI/WCAG22/Understanding/section-headings.html |
| 2.5 Input Modalities |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/input-modalities.html |
| 2.5.1 Pointer Gestures |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/pointer-gestures.html |
| 2.5.2 Pointer Cancellation |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/pointer-cancellation.html |
| 2.5.3 Label in Name |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/label-in-name.html |
| 2.5.4 Motion Actuation |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/motion-actuation.html |
| 2.5.5 Target Size |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/target-size.html |
| 2.5.6 Concurrent Input Mechanisms |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/concurrent-input-mechanisms.html |
| 3.1 Readable |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/meaning.html |
https://www.w3.org/WAI/WCAG22/Understanding/readable.html |
| 3.1.1 Language of Page |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/meaning-doc-lang-id.html |
https://www.w3.org/WAI/WCAG22/Understanding/language-of-page.html |
| 3.1.2 Language of Parts |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/meaning-other-lang-id.html |
https://www.w3.org/WAI/WCAG22/Understanding/language-of-parts.html |
| 3.1.3 Unusual Words |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/meaning-idioms.html |
https://www.w3.org/WAI/WCAG22/Understanding/unusual-words.html |
| 3.1.4 Abbreviations |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/meaning-located.html |
https://www.w3.org/WAI/WCAG22/Understanding/abbreviations.html |
| 3.1.5 Reading Level |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/meaning-supplements.html |
https://www.w3.org/WAI/WCAG22/Understanding/reading-level.html |
| 3.1.6 Pronunciation |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/meaning-pronunciation.html |
https://www.w3.org/WAI/WCAG22/Understanding/pronunciation.html |
| 3.2 Predictable |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior.html |
https://www.w3.org/WAI/WCAG22/Understanding/predictable.html |
| 3.2.1 On Focus |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-receive-focus.html |
https://www.w3.org/WAI/WCAG22/Understanding/on-focus.html |
| 3.2.2 On Input |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-unpredictable-change.html |
https://www.w3.org/WAI/WCAG22/Understanding/on-input.html |
| 3.2.3 Consistent Navigation |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-consistent-locations.html |
https://www.w3.org/WAI/WCAG22/Understanding/consistent-navigation.html |
| 3.2.4 Consistent Identification |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-consistent-functionality.html |
https://www.w3.org/WAI/WCAG22/Understanding/consistent-identification.html |
| 3.2.5 Change on Request |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/consistent-behavior-no-extreme-changes-context.html |
https://www.w3.org/WAI/WCAG22/Understanding/change-on-request.html |
| 3.3 Input Assistance |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error.html |
https://www.w3.org/WAI/WCAG22/Understanding/input-assistance.html |
| 3.3.1 Error Identification |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error-identified.html |
https://www.w3.org/WAI/WCAG22/Understanding/error-identification.html |
| 3.3.2 Labels or Instructions |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error-cues.html |
https://www.w3.org/WAI/WCAG22/Understanding/labels-or-instructions.html |
| 3.3.3 Error Suggestion |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error-suggestions.html |
https://www.w3.org/WAI/WCAG22/Understanding/error-suggestion.html |
| 3.3.4 Error Prevention (Legal, Financial, Data) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error-reversible.html |
https://www.w3.org/WAI/WCAG22/Understanding/error-prevention-legal-financial-data.html |
| 3.3.5 Help |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error-context-help.html |
https://www.w3.org/WAI/WCAG22/Understanding/help.html |
| 3.3.6 Error Prevention (All) |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error-reversible-all.html |
https://www.w3.org/WAI/WCAG22/Understanding/error-prevention-all.html |
| 4.1 Compatible |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat.html |
https://www.w3.org/WAI/WCAG22/Understanding/compatible.html |
| 4.1.1 Parsing |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat-parses.html |
https://www.w3.org/WAI/WCAG22/Understanding/parsing.html |
| 4.1.2 Name, Role, Value |
https://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat-rsv.html |
https://www.w3.org/WAI/WCAG22/Understanding/name-role-value.html |
| 4.1.3 Status Messages |
N/A - New for WCAG 2.1 |
https://www.w3.org/WAI/WCAG22/Understanding/status-messages.html |
