In ad monetization, do you often encounter these issues: your primary ad placement occasionally fails to fill, wasting precious impression opportunities? Or when it does fill, the eCPM underperforms, leaving your revenue consistently below expectations?
To help developers solve these pain points, TopOn introduces the "Shared Ad Placement Feature"—with just simple configuration, your ad placements can tap into an additional shared cache pool of ad resources on top of their original waterfall. This achieves optimization for "Fill Rate + eCPM Dual Enhancement". Let's take a comprehensive look at this "revenue-boosting tool" today!
#01
Two Modes, Precisely Addressing Monetization Pain Points
Core Functionality
The core logic of Shared Ad Placement is simple: enable multiple ad placements of the same format to "share resources," maximizing the value of every impression through "bid competition " or "fallback." Specifically, it offers two core modes for developers to choose from based on their needs:
1. Primary Placement + Shared High-eCPM Pool: Target Higher eCPM, Boost Revenue
If your primary ad placement has stable fill but you want to further increase the effective CPM, the "High-eCPM Pool Mode" is ideal.
How it works: Create one shared ad placement and link multiple primary placements to it. When a primary placement loads ads, it simultaneously loads ad resources from the shared placement. If the shared placement has cached ad sources with higher eCPMs, the APP will automatically select the higher-paying ad to display, directly boosting the overall eCPM.
Example: Primary Placement A's current eCPM is ¥100, but the linked Shared Placement has cached an ad source with a ¥200 eCPM. In this case, the ¥200 ad is prioritized for display, effectively doubling the revenue for that single impression.

2. Primary Placement + Shared Fallback Pool: Plug Fill Rate Gaps, Utilize Every IPU
If your primary ad placement suffers from low fill rates (e.g., no ads in certain regions or during specific times), the "Fallback Pool Mode" helps you "capture" every impression opportunity.
How it works: When the primary placement returns no fill from all its ad sources, it will directly use the ad sources cached by the shared ad placement for display. If the primary placement call results in no fill, the shared placement immediately steps in, using ads with a similar configuration to complete the impression. This effectively increases IPU (Impressions Per User) and prevents wasted exposure opportunities.

#02
Manual + Smart Configuration for High Yield
Waterfall Configuration
The effectiveness of Shared Ad Placement largely depends on a well-structured waterfall. TopOn offers both "Manual Configuration" and "Smart Recommended Configuration" method to suit different needs:
1. Manual Configuration: Precise Adjustments Based on Strategy
Depending on the role of the Shared Ad Placement (High-eCPM Pool / Fallback Pool), configure accordingly:
2. Smart Recommended Configuration: Let Algorithms Save You Time
If you prefer not to configure manually, TopOn's "Recommended Configuration" feature can generate an optimized waterfall for the shared placement with one click. The algorithm analyzes historical data from the linked primary placements (such as ad source performance, eCPM trends) to automatically generate the waterfall configuration for the shared placement.
Summary: From Securing Fill to Boosting Revenue, Shared Ad Placement Helps You Achieve It
For developers, the core advantages of TopOn's Shared Ad Placement Feature are:
Contact Us
Shared Ad Placement is currently available via whitelist application. Feel free to contact your TopOn Account Manager to enable this feature, or consult our operations team for personalized configuration advice—let's work together to ensure every ad impression translates into higher revenue!