The primary goal of mobile optimization in web design is to ensure that websites function effectively and provide an excellent user experience on mobile devices. This involves tailoring content layout, navigation, and loading speeds specifically for smaller screens. Optimized sites not only enhance user satisfaction but also improve search engine rankings, as search engines like Google prioritize mobile-friendly sites. Techniques include using responsive design, optimizing images, and ensuring that buttons and links are easily tappable. Ultimately, mobile optimization is essential for reaching a broader audience and enhancing engagement.