Definitions for "Client-side image map"
A client-side image map displays the active regions of an image map without a script, or set of instructions, from the server. The client-side image map is preferable to the server-side image map for accessibility.
Image maps where the map coordinates and URLs are downloaded to the client. This is a much more efficient and desirable arrangement than the older server-side image maps. The only drawback is not all browsers support client-side image maps.
an image map that is
Pixel coordinates are interpreted by the user agent; the user agent follows the link activated within a certain region, nothing needs to be sent to the server for interpretation.