What is the purpose of an ARIA landmark?

The purpose of an ARIA (Accessible Rich Internet Applications) landmark is to ensure that content is in a navigable region, which significantly enhances the accessibility of web applications for users with disabilities. ARIA landmarks define regions of a web page that assist assistive technologies, such as screen readers, in providing better navigation cues. By using ARIA landmarks, developers can label areas of a webpage such as navigation, main content, and complementary content. This allows users with disabilities to quickly jump to specific sections of a page, improving their overall experience and efficiency when interacting with web content.

Landmarks optimize the structure of the content by distinguishing between different types of content areas, which helps users understand the layout of a page without relying solely on visual cues. This functionality is crucial for creating a more inclusive web that meets the diverse needs of all users.