Pingdom: Webpages Are Getting Larger Every Year, and Here’s Why it Matters. “Webpage size matters because it correlates with how fast users get to your content. People today have grown to expect good performance from the web. In fact, Google published data showing that 53% of mobile site visits are abandoned if a page takes longer than three seconds to load. And the more data your webpage needs to download, the longer it will take—particularly on slow mobile connections.” And the fancier your Web site is the harder it’ll be to make accessible.