I've been asked to set up a monitor that looks for an image on a test environment web page. Is this possible? How?
There's a few different ways to handle this. First you can look for the reference to the image in the HTML using the "Search String" of the HTTP or HTTPS User Experience Monitors.
The second option is to point the HTTP or HTTPS User Experience Monitor at the image itself.
The last (and best) method is to use Web Performance Monitor's Image Match feature