...The heatmaps appear in seconds on your screen, and are constantly updated: no need to reload your page! Edit your content, change a picture, then see the impacts of your change immediately. Installing heatmap takes a minute: just add our simple JavaScript tag, and you are set to go! Our tag is very small (<8kB) and asynchronous, so it won't slow down your pages. The tag works with all browsers (even IE7!), ajax navigation, fixed elements, etc. and handles rendering differences between users (e.g. ads, responsive design, zooming, customizable widgets), and is configurable, if need be.