A pop-under ad is one that opens in a separate window of a website that a user has visited. This type of ad does not impede the user’s view of the site they initially visited, but instead opens in the background.

This type of ad was first introduced in the mid-1990s with a set of JavaScripts functions for the Netscape browser:

I noticed alot of people get turned away by pop-unders or over or whatever. They are just annoying.

EXOCLICK POPUNDER CPM

Popunder

A subtle, less intrusive ad leaving the user’s attention focused on the advertisement.

A popunder, triggered when a user clicks anywhere on the page, appears hidden behind the main browser window where it remains unnoticed until the main browser window is closed or minimized. Leaving the user’s attention focused on the advertisement.

CPM

$0.20-$0.30

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