On January 10, 2017, Google began rolling out a penalty to punish aggressive interstitials and pop-ups that could decrease the satisfaction of a mobile user’s experience on a site. The search engine’s experts had actually warned of this update five months in advance so many SEO specialists were prepared. This is a strong stance and Google explains their decision by noting how pop-ups can cover the entire screens of mobile devices since they are so much smaller. Which Pop-Ups are okay and which ones aren’t? We have the intel.