Heatmaps are graphical overlays of your website which points out what content is hot and what not. This is mainly done by tracking the mouseclicks of the visitor . A more expensive model uses eyetracking to achieve this overlay. Although the results look the same, the two options are somewhat different. The click-heatmap makes it possible to analyse the clicking behaviour of the visitor while the eyetracking-heatmap shows you where people actual look on your webpage.