Why publishers are rethinking ad formats before late-summer demand peaks

Publishers are preparing for seasonal traffic surges that typically arrive in August and September, when advertisers increase bids and fill rates rise across most ad formats. In this environment, choosing the right monetization format can mean the difference between flat revenue and a 20–30% lift. Popunder and push ads target different user behaviors and technical setups, so the best choice depends on your site’s traffic patterns and compliance requirements.

Popunder ads: fast revenue with minimal setup, but not for every vertical

Popunder ads open in a new tab behind the main window, allowing users to continue browsing while the ad remains visible. This format is widely used by publishers because it requires minimal technical integration and can monetize nearly any vertical, including news, entertainment, and gaming. According to Kadam’s 2025 guide, popunders are particularly effective for publishers who need to maximize fill rates quickly, with networks that buy 100% of traffic delivering a 10–30% revenue boost compared to 70% fill-rate partners. The format is also favored in hybrid strategies alongside native and push ads, as it scales efficiently without heavy user disruption.

However, popunders are less suitable for time-sensitive promotions. ROIAds notes that urgent offers may underperform because the ad does not demand immediate attention, making it a poor fit for flash sales or last-minute campaigns. Publishers should also test popunders on low-traffic pages first to monitor for policy conflicts and user experience issues before scaling.

Push ads: higher long-term value, but require upfront investment

Push ads deliver notifications directly to users’ devices, creating immediate visibility and higher engagement rates for advertisers. Monetag’s comparison highlights that push ads require more upfront work—such as building a subscriber base and crafting compliant opt-in flows—but generate stronger long-term revenue and better user relationships. This format is ideal for publishers with loyal audiences who are willing to opt in, as it supports retargeting and recurring campaigns that drive repeat visits and higher lifetime value.

Push ads also align well with seasonal campaigns, as advertisers often bid aggressively during peak periods. The format’s direct-to-user approach reduces reliance on third-party cookies, making it a future-proof choice as privacy regulations tighten. Publishers should prioritize push ads if their audience is engaged enough to opt in and if their monetization stack can support multiple revenue streams without conflicts.

How to decide before the August–September demand surge

Start by auditing your traffic sources and user behavior. If your audience includes high-intent visitors who frequently return, push ads may deliver better returns through subscriber growth and retargeting. If your traffic is broad or includes casual visitors, popunders can provide immediate revenue with minimal setup. Test both formats on low-traffic pages to identify conflicts and measure fill rates before committing to a full rollout.

Next, evaluate your ad network partners. For popunders, choose networks with 100% fill rates and transparent compliance policies to avoid penalties. For push ads, prioritize platforms that offer granular targeting and retargeting options to maximize engagement. Hybrid strategies—combining popunders for immediate revenue and push ads for long-term growth—are increasingly common among top publishers, as they diversify risk and capture value across different user behaviors.

Key takeaways for publishers planning ahead

Popunder ads are the low-friction choice for publishers who need quick revenue and broad vertical compatibility. Push ads require more effort but deliver higher long-term value and stronger user relationships, especially for publishers with engaged audiences. Before the late-summer demand peak, test both formats on low-traffic pages, monitor fill rates and compliance, and scale the winner based on your site’s unique traffic patterns. The right format can turn a seasonal traffic spike into a revenue lift of 20–30% or more.

For publishers unsure where to start, Kadam recommends signing up with a popunder network to test fill rates and revenue potential, while Monetag’s guide suggests building a push subscriber base through compliant opt-in flows. The best choice depends on your audience and technical setup, but the window to prepare is closing as demand peaks approach.

Use the Monetag traffic spike calendar as your planning anchor, and supplement with your own traffic data to time the rollout for maximum impact.

Quick action checklist

  • Audit your top traffic sources and user behavior patterns.
  • Test popunder ads on low-traffic pages to measure fill rates and compliance risks.
  • Build a push subscriber base with clear opt-in flows and value propositions.
  • Evaluate network partners for 100% fill rates (popunders) and retargeting options (push).
  • Plan a hybrid rollout if your audience supports multiple formats.

By aligning your ad format choice with your audience’s behavior and the seasonal demand cycle, you can capture more revenue from the late-summer surge without sacrificing user experience or compliance.

Sources

This article is grounded in the following sources: