Mobile adoption around the world is having a significant impact on the web’s traffic. According to a new report from SimilarWeb, out today, mobile web traffic has jumped 30.6% since 2017, while desktop traffic dropped 3.3%. But it’s not just the numbers that are changing. Mobile visitors also behave differently from their desktop web counterparts, staying on pages for shorter periods of time, for example, which is impacting core metrics web publishers today track.