If your site doesn’t have certain measures, you may be losing a lot of potential customers and revenue. Thankfully, this is an easy fix. For instance, you should personalize content for customers based on the number of times they have visited your site. And if your site isn’t optimized for mobile devices, you’re losing out on a huge market. Make sure your site pops up quickly on mobile devices, or you risk people leaving before the site has a chance to fully load.