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PopUnder ads are one of the most effective ad formats for publishers looking to maximize their earnings. Unlike traditional display ads, PopUnders open in a new browser tab or window behind the user’s current screen, ensuring visibility without disrupting the browsing experience. This format works exceptionally well because it guarantees impressions, making it highly attractive to advertisers running CPM (cost per thousand impressions) campaigns.

For publishers, PopUnders can be an incredibly profitable monetization method. Since all campaigns in these networks operate on a CPM basis, you earn revenue simply by displaying the ads—no clicks required. The key to success with PopUnders is finding a network with competitive CPM rates, high-quality advertisers, and efficient targeting to ensure good user engagement.

If you’re looking for the best PopUnder ad networks with high CPMs, here are five top choices:

PopAds

PopAds is one of the most well-known PopUnder ad networks, offering some of the highest CPM rates in the industry. Unlike many competitors, PopAds gives publishers complete control over how PopUnder ads appear on their websites. Publishers can configure various settings, including ad frequency, filters, and minimum bid prices, allowing them to fine-tune their monetization strategy for the best balance between revenue and user experience. It is particularly strong in Tier 1 countries like the US, Canada and Europe, where advertisers are willing to pay premium rates for impressions. Another key feature is the advanced targeting and customization options, allowing website owners to block unwanted ad categories to maintain a good user experience.

One of PopAds’ biggest advantages is its fast and flexible payout system. The minimum withdrawal amount is just $5, making it accessible to small and large publishers alike, and an ideal choice for those who prefer frequent payouts. Payments are processed daily through PayPal, Payoneer, Bitcoin, Capitalist and wire transfers. 

In addition to PopUnders, PopAds also offers floating banners, which can be displayed alongside the PopUnders to increase overall earnings. With high CPMs, extensive customization options, and quick payouts, PopAds remains a top choice for publishers looking to maximize their revenue with PopUnder ads.

Link: Sign up in PopAds

PopCash is a highly specialized popunder advertising network founded in 2012. Popcash works with both publishers and advertisers from all over the world. Publishers can easily leverage this ad network to serve popunders to their users and earn high ad revenue for both web and mobile monetization.

PopCash for Publishers

In order to start monetizing websites with Popcash, publishers just need to sign up and create an account. All you need to do is register, submit your website and place our popunder code on the desired pages: Sign up for a Publisher Account on PopCash

Once your domain has been approved, all of your visitors will be shown a popunder advertisement every 24 hours. Popunder ads means the ads which automatically opens in another tab or window is called popunder advertising, in this case main window of your website will remain as it is so will not affect your page. The earning potential of Popunders are higher than other ad formats.