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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

PopCash is a reliable PopUnder ad network known for its strong CPM rates and instant approval process, allowing publishers to start earning almost immediately after signing up. The platform offers high-paying ads across multiple geographies and is particularly strong for North American and European traffic. Unlike PopAds, PopCash does not allow publishers to configure PopUnders themselves; instead, it limits ads to one PopUnder per day per IP. While this reduces customization options, it ensures high CPMs and a better user experience.

Another major advantage of PopCash is its low payment threshold, with a minimum withdrawal of just $10. Payments are processed quickly via PayPal, Paxum, Skrill, Payoneer, WebMoney, Bitcoin and other methods, making it an attractive option for publishers who need fast access to their earnings.

While PopCash does not provide banner ads or direct link monetization, the company operates a separate platform called Mondiad, which offers additional monetization options. This makes PopCash a great choice for publishers who prioritize high CPMs and simplicity in their monetization strategy.

Link: Sign up in PopCash

Adsterra

Adsterra is a well-known ad network offering high-quality PopUnder ads with competitive CPM rates. The platform serves both mainstream and adult traffic, making it a flexible option for publishers across different niches. One of its strongest advantages is its ability to deliver high CPMs for a broad range of geographies, including Tier 1 and Tier 2 countries, ensuring good revenue potential for publishers with global traffic.

Beyond PopUnders, Adsterra offers multiple ad formats, including push notifications, native ads, social bar ads, and banners, allowing publishers to diversify their earnings. The network also provides strong anti-Adblock solutions, ensuring that a higher percentage of ads are actually displayed, which translates into more revenue.

Payment options are another highlight, as Adsterra processes earnings biweekly through PayPal, Bitcoin, WebMoney, and other popular payment systems. With its solid reputation, innovative monetization options, and strong CPM rates, Adsterra is a great choice for publishers looking to maximize their revenue potential.

Link: Sign up in Adsterra

Monetag

Monetag, previously known as PropellerAds, is a leading ad network that specializes in PopUnder ads and automated monetization solutions. One of its key strengths is its AI-powered optimization system, which ensures that publishers receive the highest-paying ads based on their audience’s behavior and location. This feature helps maximize CPM rates and ensures steady earnings.

In addition to PopUnders, Monetag provides a variety of ad formats, including push notifications, in-page push ads, and interstitials, allowing publishers to explore multiple revenue streams. The network’s Smart Tag technology simplifies the monetization process by automatically serving the best-performing ads without requiring manual adjustments from the publisher.

When it comes to payments, Monetag offers flexible options, with weekly and biweekly payouts through PayPal, Payoneer, Bank Transfer and WebMoney. With its AI-driven approach, strong CPM rates, and multiple monetization methods, Monetag is an excellent choice for publishers who want a hands-off approach to website monetization.

Link: Sign up in Monetag

Adcash

Adcash is a well-established ad network that provides premium PopUnder advertising solutions for publishers looking to maximize their earnings. Known for its strong advertiser demand and high CPM rates, Adcash ensures that publishers receive competitive payouts, especially for traffic from top-tier countries like the US, UK, and major European markets.

One of the key advantages of Adcash is its high fill rate, meaning publishers can monetize almost all their available ad inventory without significant loss. Additionally, Adcash’s anti-Adblock technology helps recover lost impressions, ensuring that more ads are displayed even on websites where users have ad blockers enabled.

Beyond PopUnders, Adcash also offers a variety of ad formats, including native ads, banners, push notifications, and interstitials, making it a versatile option for publishers who want to diversify their monetization strategies. The network provides multiple payment methods and a smooth withdrawal process, making it a reliable choice for publishers seeking consistent earnings.

Link: Sign up in Adcash

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