With so many frequent changes on Google, it’s impossible to notice them all. Most SEMs were quick to notice the removal of the right-side ads back in February but fewer realized another SERP update that has been silently affecting advertisers’ click-through rates (CTRs) for the last few months.
First noticed around April 14, Google has been slowly rolling out a change to the SERP in which the ads were displayed slightly differently. Before April, you may recall that ads were shown with a small yellow “Ad” label beside the display URL.
Now, that yellow ad label is green, and Google has confirmed that change will affect all search ads moving forward