Quick Table of Contents

Appendix B WCAG 2.0 Checklist (Non-Normative)

The Web Content Accessibility Guidelines 2.0 Checklist serves as an appendix to Web Content Accessibility Guidelines 2.0 [WCAG20]. It lists all of the success criteria from WCAG 2.0 in a checkable list. The level of each success criterion is provided as well as a link to WCAG 2.0 for more information for each success criterion. For many readers, the Checklist provides a quick reference and overview to the information in WCAG 2.0.

Success Criteria

Guideline 1.1 : Provide text alternatives for all non-text content.
True Success Criterion Comments
L1

Note: For requirements for synchronized alternatives for multimedia refer to Guideline 1.2 Provide synchronized alternatives for multimedia.

 

 

 

 

 
L3

 
Guideline 1.2 : Provide synchronized alternatives for multimedia.
True Success Criterion Comments
L1

 

 
L2

 
L3

 

 
Guideline 1.3 : Ensure that information, functionality, and structure can be separated from presentation.
True Success Criterion Comments
L1

 

 
L2

 

 
L3

 

 
Guideline 1.4 : Make it easy to distinguish foreground information from its background
True Success Criterion Comments
L2

 

 
L3

 

Note: A 20 decibel difference in sound level is roughly 4 times quieter (or louder). Background sound that meets this requirement will be approximately four times (4x) quieter than the foreground audio content.

 
Guideline 2.1 : Make all functionality operable via a keyboard interface.
True Success Criterion Comments
L1

Note: This does not preclude and should not discourage the support of other input methods (such as a mouse) in addition to keyboard operation.

Note: MouseKeys does not satisfy this success criterion.

 
L3

 
Guideline 2.2 : Allow users to control time limits on their reading or interaction.
True Success Criterion Comments
L1

  • the user is allowed to deactivate the time-out or;

  • the user is allowed to adjust the time-out over a wide range which is at least ten times the length of the default setting or;

  • the user is warned before time expires and given at least 20 seconds to extend the time-out with a simple action (for example, "hit any key") and the user is allowed to extend the timeout at least 10 times or;

  • the time-out is an important part of a real-time event (for example, an auction), and no alternative to the time-out is possible or;

  • the time-out is part of an activity where timing is essential (for example, competitive gaming or time-based testing) and time limits can not be extended further without invalidating the activity.

 
L2

Note: Refer to Guideline 2.3 Allow users to avoid content that could cause seizures due to photosensitivity. for requirements for avoiding creating content that could cause seizures due to photosensitivity.

 

 
L3

 

 

 
Guideline 2.3 : Allow users to avoid content that could cause seizures due to photosensitivity.
True Success Criterion Comments
L1

 
L2

 
Guideline 2.4 : Provide mechanisms to help users find content, orient themselves within it, and navigate through it.
True Success Criterion Comments
L1

 
L2

 

 

 

 
L3

 

 

 
Guideline 2.5 : Help users avoid mistakes and make it easy to correct mistakes that do occur.
True Success Criterion Comments
L1

 
L2

 

  1. Actions are reversible.

  2. Actions are checked for input errors before going on to the next step in the process.

  3. The user is able to review and confirm or correct information before submitting it.

 
L3

 
Guideline 3.1 : Make text content readable and understandable.
True Success Criterion Comments
L1

 
L2

Note: This requirement does not apply to individual words or to phrases that have become part of the primary language of the content.

 
L3

 

 

  1. A text summary that requires reading ability less advanced than the lower secondary education level.

  2. Graphical illustrations of concepts or processes that must be understood in order to use the content.

  3. A spoken version of the text content.

 

 
Guideline 3.2 : Make the placement and functionality of content predictable.
True Success Criterion Comments
L1

Note: Refer to Guideline 2.1 Make all functionality operable via a keyboard interface. for requirements for making all functionality operable via a keyboard interface.

 
L2

 

 

 
L3

 
Guideline 4.1 : Ensure compatibility with current and future user agents (including assistive technologies)
True Success Criterion Comments
L1

 

 

 

Note: Some examples of standardized properties that typically can be changed by the user interface include its value, whether it is currently selected, and whether it currently has the focus.

 

 
Guideline 4.2 : Ensure that content is accessible or provide an accessible alternative
True Success Criterion Comments
L1

 

  1. When content violates either the general flash threshold or the red flash threshold, users are warned in a way that allows them to avoid it.
  2. If the user can enter the content using the keyboard, then the user can exit the content using the keyboard.

 
L3