What is the function of the area tag in HTML?

The area tag in HTML serves to define a clickable area within an image map. This tag is used in conjunction with the map and img tags to create a clickable image, allowing different regions of the image to be linked to different destinations. Each area within an image map can have its own unique hyperlink, making this functionality particularly useful for creating more interactive and navigable web pages.

When multiple clickable regions are defined within a single image, the area tag is critical in specifying the boundaries, shape, and link for each segment. For instance, it can define rectangular, circular, or polygonal clickable areas, enhancing user engagement and navigation across the site. This capability to associate different parts of an image with distinct links is why the area tag is essential for image maps in HTML.