Mobile optimization in web design refers to the process of ensuring that websites function effectively on mobile devices. This involves adjusting layouts, images, and interactive elements to fit smaller screens and improve usability. Key aspects include faster loading times, touch-friendly interfaces, and appropriately scaled content. The goal is to enhance user experience (UX) on smartphones and tablets, as an increasing number of users access the web primarily through mobile devices. Proper optimization helps to minimize bounce rates and boost engagement.