Heatmaps are visual reports that show where visitors click, scroll or move their mouse on a page. Tools like Hotjar or Crazy Egg place colors on the screen so hot areas mean many clicks while cold areas show little action. When an affiliate blogger studies this map it becomes clear if readers ignore banners or miss product buttons. The page can then be changed by moving links higher or making buttons clearer. Small layout changes often raise clicks and sales. How useful are heatmap reports for improving affiliate pages?