Why publishers need a format plan before demand peaks

Monetag’s Interactive Traffic Spike Calendar 2026 highlights more than 60 high-monetization events across sports, holidays, and seasonal shopping windows. These spikes create short windows to test and scale new ad formats. Popunder and push ads behave differently under pressure: popunders can be launched quickly for immediate revenue, while push campaigns require more setup but can deliver stronger long-term returns. Publishers who decide which format to prioritize before the spike hits avoid last-minute scrambles and missed opportunities.

Popunder ads: fast setup, immediate revenue, but limited attention

Popunder ads open in a new tab behind the main window, so they don’t interrupt the user experience. This makes them suitable for sites where immediate monetization is a priority and where time-sensitive offers are not the focus. According to Monetag’s guide, popunders “offer immediate revenue with minimal setup,” which is ideal for testing new traffic sources or scaling quickly during a spike. However, because the ad doesn’t demand instant attention, time-sensitive promotions may underperform on popunders, as noted by ROIAds. Publishers should avoid using popunders for flash sales or urgent CTAs that require immediate user action.

Push ads: higher long-term value, but more upfront work

Push notification ads require explicit user opt-in and ongoing campaign management, but they build direct relationships with audiences. Monetag emphasizes that push ads “can generate higher long-term revenue and better user relationships” compared to popunders. This format is especially effective for sites with loyal communities or repeat visitors, where permission-based messaging can drive repeat visits and sustained engagement. Push campaigns also allow for segmentation and retargeting, which can improve conversion rates over time. The trade-off is the initial effort to onboard users and maintain deliverability.

How to test both formats before the next spike

Use the traffic spike calendar to plan a two-phase test. Start with a small popunder campaign to validate reach and immediate revenue during the first days of the spike. If performance is strong, scale the popunder budget while simultaneously launching a push campaign for the second half of the spike. PropellerAds recommends a similar sequence: begin with an Onclick (popunder) campaign to maximize reach during testing, then scale to push notifications once the campaign proves viable. This staged approach lets publishers compare CPMs, fill rates, and user retention without overcommitting to one format. For video-heavy sites, networks like RichAds offer both push and popunder inventory alongside video ads, giving publishers flexibility to mix formats based on audience behavior.

Which format fits your site’s audience and offers?

Popunders work best for broad-reach campaigns and sites where user experience is sensitive to interruptions. Push ads are stronger for sites with engaged, opted-in audiences and offers that benefit from repeated exposure. If your site relies on gaming, utilities, or VPN traffic—where mobile traffic dominates—networks like Clickadu provide both formats with mobile-heavy volumes, making it easier to match format to audience. Publishers should align format choice with offer type: popunders for evergreen or broad-market offers, push for permission-based, high-intent messaging. The right choice depends on your audience’s tolerance for interruptions and your campaign’s urgency and lifecycle.

Key takeaways for publishers planning ahead

Popunder ads enable quick monetization with minimal setup, making them ideal for testing and immediate revenue during spikes. Push ads require more upfront work but can deliver higher long-term value and stronger user relationships. Use the traffic spike calendar to schedule a staged test: start with popunders for reach, then scale to push for retention and repeat engagement. Choose the format that matches your audience’s behavior and your offer’s urgency. With the right plan, publishers can turn seasonal spikes into sustained revenue growth instead of one-off windfalls.

Quick checklist before the next spike

  • Review Monetag’s traffic spike calendar to identify your next high-monetization window.
  • Set up a small popunder campaign to validate immediate revenue potential.
  • Begin collecting push opt-ins in advance if you plan to test push ads later in the spike.
  • Compare CPMs, fill rates, and user retention between formats to inform future scaling decisions.
  • Align format choice with offer type: popunders for broad, evergreen offers; push for permission-based, high-intent messaging.

By making these decisions before the spike hits, publishers can move from reactive to proactive monetization and capture more value from every seasonal surge.

For more on ad formats and network comparisons, see RichAds’ breakdown of video and push/popunder networks and Clickadu’s mobile-focused ad format offerings.

Use this planning window to decide which format to scale before demand peaks hit, and you’ll be ready to monetize—not scramble—when traffic surges arrive.

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