Unverified60% confidenceFactExact time
The Accessibility Tree is a semantic interface structure provided by browsers and operating systems for screen readers, containing the role, name, and hierarchical relationship of each element.
2
Sources
60%
Confidence
Long-term
Relevance
7/15/2026
First Seen
Sources
Related Claims
Unverified可访问性树是浏览器根据DOM和ARIA属性构建的语义化树状结构，由操作系统辅助功能API暴露给外部程序79% similarUnverifiedScreen readers (such as NVDA, JAWS, and VoiceOver) rely on the accessibility tree exposed by the browser to understand page structure.72% similarVerifiedThe accessibility tree is a semantic tree structure built by the browser based on the DOM; it strips away visual style information and retains semantic information such as the role, name, state, and properties of each element.72% similarVerifiedCompared to the raw HTML DOM, the Accessibility tree filters out a large amount of purely visual style information and retains semantically interactive elements, reducing token consumption while improving Agent perception accuracy.65% similar
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