A new “block similar” tool in the AdSense Ad review center allows publishers to block visually similar ads by uploading a screenshot or logo or by searching for text in images. The functionality is powered by an integration with Google image search. That’s one of three new features Google added to the AdSense Ad review center today.
Publishers can now preview the landing page of an ad, see how long a video ad is, find out when an ad is set to be auto-approved and get details about advertisers and ad networks by clicking on the magnifying glass on the bottom right corner of an ad in the review center.
Lastly, you’ll notice the new impressions bar at the bottom of the screenshot. That shows the percentage of ads you’ve reviewed relative to your site’s total ad impressions.