Google last week introduced more controls 3 new settings to Auto optimize in AdSense. Publishers have now more control over the optimization experiments that Google is running on their websites.
The new settings enables publishers to select the percentage of users that they want to show optimization experiments.
Publishers can also remove types of optimization experiments that they don’t want on their websites, like vignette ads and anchor ads.
The third setting is for AdSense for search only, and allows publishers to remove an ad style that they don’t want.