Accessibility Checking for Large Sites

Rocket Validator integrates axe-core version 4.1, which currently checks 91 accessibility rules, into an automated web site scanner.

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Certain ARIA roles must contain particular children

Some ARIA parent role values applied to elements must contain specific child elements and role values to perform intended accessibility function.

For each role, WAI-ARIA explicitly defines which child and parent roles are allowable and/or required. ARIA roles missing required child roles will not be able to perform the accessibility functions intended by the developer.

Assistive technology needs to convey the context to the user. For example, in a treeitem, it is important to know the parent (container), item, or siblings in the folder. This can be done in two ways:

  1. Code order or DOM: The necessary context is often clear from the code order or DOM.
  2. ARIA: ARIA (such as aria-owns) can be used provide the relationships when the hierarchy is not the same as the code structure or DOM tree.

Learn more about this accessibility rule at Deque University >>

Other WCAG: 1.3.1 accessibility rules checked by Rocket Validator