ClickHeat | Clicks heatmap ClickHeat is a visual heatmap of clicks on a HTML page, showing hot and cold click zones. ClickHeat is a visual heatmap of clicks on a HTML page, showing hot and cold click zones. Requires Javascript on the client to track clicks, PHP and GD on the server to generate the heatmap in Public bookmarkswith freeheatmapsstatisticstoolsby 8 users