Popunder advertising can be a format where an ad opens in the new browser window or tab behind the person’s active window. It’s designed to be less intrusive than pop-ups, appearing only following the user has left or minimized the main site window, developing a more seamless browsing experience. Popunders https://andreiomk94838.verybigblog.com/30534939/popunder-advertising-a-guide-to-maximizing-engagement-and-conversions