Mobile Web Design What is a mobile website? A mobile website is a website that is designed specifically for mobile phone and tablet users. If you have ever accessed web pages from a smart phone or tablet, you may have noticed that some websites are difficult to navigate, visually unappealing, and take a ridiculous amount of time to load on your device, while on your desktop or laptop computer they work just fine. This is because these sites have not been optimized for mobile viewing! 55% of the world’s 6 billion mobile phone owners have smart phones, and 45% of those smartphone owners say that they use their phone over a laptop or desktop computer when searching for products and services.