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This rule verifies if the accessible names of sibling heading elements of the same level are unique.


If section headings that share the same parent heading are not unique, users of assistive technologies will not be able to discern the differences among sibling sections of the web page.

This rule checks 1 case:

  1. Sibling headings accessible names must be unique.

Incorrect example



Correct example

<h2>Example 1</h2>

<h2>Example 2</h2>


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