It's a form of advertisement that "pops under" the user's active window, displaying the ad without causing immediate interruption to the user's activity. Upon closing their active window, users find the ad and can interact with it.
What is the Onclick (Popunder) Ad Format?
The Onclick ad format works by opening a new browser window behind the current browser window. Once a user closes or minimizes their active browser window, they will see the Onclick advertisement. This approach is less intrusive than traditional pop-up ads, which disrupt users by appearing in front of the content they are currently viewing.
Onclick ads can be fully customizable and can accommodate a wide range of content, from promotional messages to comprehensive websites. These ads often carry high-quality content, encouraging users to engage, leading to higher conversion rates.