Why it matters: Visual hierarchy allows users to scan information quickly, prioritizing content based on their immediate needs. Thus, items at the top of the visual hierarchy must be the most important to the business and most relevant for users.
How to test: Cover your eyes so that only small cracks remain. When looking at the product, you’ll instantly visualize the hierarchy and notice which elements stand out. Are those the most important ones for your business and users?
A good example: