Rule: Sibling headings should be unique

Rule ID Heading 3
Conformance Recommended
Definition The accessible names of sibling heading elements of the same level should be 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.
Conformance Recommended
WCAG Success Criteria

Success Criterion 2.4.6 Headings and Labels

Rule Category Headings
Rule Scope Element
  • 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.
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