> For the complete documentation index, see [llms.txt](https://bryan-guner.gitbook.io/my-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bryan-guner.gitbook.io/my-docs/job-search/interview-prep/interview-questions./accessibility-tree.md).

# accessibility-tree

#### What is the Accessibility Tree? <a href="#what-is-the-accessibility-tree" id="what-is-the-accessibility-tree"></a>

**Answer**

The Accessibility Tree is a structure produced by the browser’s Accessibility APIs which provides accessibility information to assistive technologies such as screen readers. It runs parallel to the DOM and is similar to the DOM API, but with much fewer nodes, because a lot of that information is only useful for visual presentation. By writing semantic HTML we can take advantage of this process in creating an accessible experience for our users.

**Good to hear**

* Tree structure exposing information to assistive technologies
* Runs parallel to the DOM
* Semantic HTML is essential in creating accessible experiences

**Additional links**

* [Accessibility APIs](https://www.smashingmagazine.com/2015/03/web-accessibility-with-accessibility-api/)