What is the Clickthrough Heatmap?
Our clickthrough heatmap displays the campaign you select and shows how many clicks took place at each link in a visual way. It displays where the most clicks took place by displaying as a red border around the number of clicks and the least clicks by displaying a blue border.
Find the clickthrough heatmap report here: Analytics > Campaigns (left-hand navigation) > Clickthrough Heatmap
Learn more about this report here.