This page is testing whether search indexing robots index links in image maps. For more tests, see the List of Robot Tests .
Image maps are graphic images with links or actions associated with sections of the image.
For example, a map have different links when you click on California, Illinois or Maine. These are HTML commands associated with an image which include links, triggered in the browser when a user clicks on a particular point on the image. Most robot spiders can follow links in these formats, because they include the familiar HREF codes. If you find the page, the indexing robot can follow those links, otherwise, it cannot. For a good explanation, see the Webmonkey Server-Side ImageMap page .