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August 04, 2021 01:31

Sibling headings must be unique

Actions

Severity Action
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Details

Rule ID Heading 3
Definition The accessible names of sibling heading elements of the same level must be unique.
Purpose
  • 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.
WCAG Success Criteria

2.4.6 Headings and Labels (Level AA, Primary Success Criterion)

Rule Category Headings
Scope Element
Target Resources Heading elements
  • h1
  • h2
  • h3
  • h4
  • h5
  • h6
Techniques
  • Make sure the accessible names of sibling headings that share the same parent heading help users understand the unique content of each section they describe.
Informational Links

Element Results

Element Identifier Result Element Position Message

Column Definitions

Element Identifier
Information about the element associated with the result.
The information typically includes the tag name, accessible name or other information related to the rule requirements.
"Page" means that the result applied to the page. For example, the rule "One main landmark on the page" is a page level rule.
Element Position
The element position is based on the DOM order of elements in the page.
The element position maybe useful in helping to locate a specific element on the page evaluated (e.g smaller numbers are typically toward the beginning of a page and larger numbers typically toward the end of a page).
Element position 1 is the first element.
The highest element position is the last element.
Element position values for most rule/page results will not be consecutive since a rule only applies to a sub set of elements found on a page.