A responsive website design will automatically conform to the shape of the device it's being displayed on. Devices include desktop/laptop computers, smart phones and tablets. Since the content responds to the device it results in a more positive user experience because the content is legible and easier to read. If a website is not responsive, the browser needs to pinch an enlarge the screen in order to better view the content. If a viewer gets frustrated in reading content on an unresponsive website, it's very likely they'll leave the site and look for another one that is mobile friendly. Since more and more browsers view websites on smart phones, it's important to have a responsive website.This usually means upgrading your current site with a new responsive template. In a mobile search, Google will let browsers know if a site is responsive by adding "Mobile-friendly" next to the meta description. See image with Mobile-friendly circled in red.