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What is the Accessibility Score?

Sean Needham avatar
By Sean Needham

The Accessibility Score is a measure of how well your site meets the standards set out in WCAG (Web Content Accessibility Guidelines) 2.0.

The Accessibility Score is a sub-score used to calculate a website's Digital Certainty Index™ (DCI™) Score. The Accessibility Score can be seen on the Dashboard and on the Accessibility Overview page for the site.

To improve your Accessibility Score, you can use the "Fix These Issues To Improve Your Score" list on the Accessibility Overview page.

The issues are listed in order of the impact they have on your score so you can easily prioritize tasks to be carried out. You can also filter accessibility issues by role (Editor, Webmaster, or Developer) using the tabs in the overview.

The weighting of issues can be seen in the table below. 
 

Subcategory What is it? What's needed for a high score Weighting

Errors

How well your site adheres to WCAG 2.0. This is determined by the number of automatically detected failures to meet success criteria at Level A, Level AA, or Level AAA ("errors").

A site has few or no errors at Level A, AA, and AAA. Note: it is not possible to fulfill all Level AAA success criteria for some content. 

66.5%

Warnings

How well your site meets WCAG 2.0 best practices at all levels (A, AA, AAA). Non-conformance to best practices are measured by the number of "warnings" on your site.

A site has few or no warnings at Level A, AA, and AAA. Note: it is not possible to fulfill all Level AAA success criteria for some content. 

3.5%

Pages with multiple Level A/AA errors 

How many pages on your site have two or more Level A or AA errors. 

Pages have no errors or only one error at Level A or Level AA.

30%

0.665 (Errors - all levels) + 0.035 (Warnings - all levels) + 0.3 (Pages with multiple Level A/AA errors) = Final Accessibility Score

100%

Note: The Digital Certainty Index™ (DCI™) has a patent pending.

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