On Monday the Google Webmaster Central blog announced yet another update to their search engine results page (SERP) that sends a strong message to any website without responsive design. If your website requires browser technologies that are not supported by the varying mobile devices of searchers Google will display your listing on their SERP with a “warning”. This warning tells searchers that the site they are considering clicking on (yours?) may not work on their smartphone and/or tablet. See the image below. Not very awesome right? Imagine what will happen to your click-through rate when your listing on Google is delivered to mobile users in this manner.