Google is introducing mobile anchor ads for AdSense publishers to help monetize mobile traffic. The ads are 320×50 banners that appear at the bottom of a users’ smartphone screen. The ads remain anchored as the user scrolls up or down.
Rather than clicking an “X” icon in the upper right corner as with most other mobile anchor banners, users dismiss the AdSense ads by swiping left or right on the ad. There are arrow icons on either side of the ad, but it’s unclear how intuitive it will be for users to swipe if they want to remove an ad.
If users do dismiss an ad, it won’t appear again unless the user reloads that page or visits another page on the site. The ads are designed to not affect mobile page load times.
Google says it has enabled the feature for a select group of publishers and will slowly roll it out to all AdSense publishers over the coming months.