Has one or more image-map <map> tags

This means that the URL in question contains image-map tags.

Why is this important?

Image maps rely on hard coded coordinate data for each different link, which do not scale well in mobile browsers. If the image in the image map is resized (e.g. switch from portrait to landscape), the associated hyperlinks drift out of registration with the underlying visual elements, making navigation a case of hunting, clicking and luck - making traditional image maps entirely inappropriate for modern mobile website design.

What does the Hint check?

This Hint will trigger for any internal URL which contains  image-map tags.

Examples that trigger this Hint:

This Hint would trigger for any URL that has an image-map in the HTML:

<img src="planets.gif" width="145" height="126" alt="Planets" usemap="#planetmap">

<map name="planetmap">
 <area shape="rect" coords="0,0,82,126" href="sun.htm" alt="Sun">
 <area shape="circle" coords="90,58,3" href="mercur.htm" alt="Mercury">
 <area shape="circle" coords="124,58,8" href="venus.htm" alt="Venus">
</map>

How do you resolve this issue?

Image maps are an antiquated technique for creating an image with clickable areas - instead look to replace image maps with embedded SVGs or JavaScript (example library).