Understanding product and device performance
The Performance page offers two ways to break down your total earnings into actionable subsets: by ad product and by device type. Both views exist to help you move beyond the single "Total Earnings" figure and understand which formats and audiences are driving your results — and where there may be room to improve.
Tracking product-level performance
The Product Performance chart shows Impressions and Earnings for a single ad product at a time. Use the dropdown above the chart to switch between products — Standard Display, Instream Video, Outstream Video, Standard Native, and so on. The chart covers the same date range selected at the top of the Performance page.
When to use it:
- To check whether a revenue change is isolated to one format or affecting all products equally
- To compare how a specific product performed this period versus a previous period — select the same product and adjust the date range
- To understand the impression volume and eCPM profile of a product you are considering expanding
Analyzing device distribution
The Device Performance chart shows how your earnings are distributed across device types — Desktop, Mobile, Tablet, CTV (Connected TV), Feature phone, and Unknown. It is displayed as a donut chart, where each segment represents one device type's share of total earnings for the selected period. The chart or accompanying data table shows the exact earnings figure for each device type.
Why device mix matters:
Desktop and mobile typically generate different eCPMs — desktop usually commands higher prices due to larger ad formats and stronger buyer demand, while mobile drives higher impression volumes. The balance between the two in your portfolio directly affects your overall eCPM. A shift in your device mix — for example, a growing share of mobile traffic — can cause an overall eCPM change even when nothing else has changed.
Advanced analysis in Reports
Both the Product Performance and Device Performance charts show one variable at a time. For a side-by-side comparison — for example, eCPM and Impressions by product across multiple devices — use the Reports section. Combining Product and Device as dimensions gives you the full matrix in a single exportable table.
- If your overall eCPM has changed and you are not sure why, check whether your device mix has shifted — a change in the Desktop vs Mobile ratio is a common cause that is easy to overlook.
- If your video eCPM is underperforming, the Reports page breakdown by product and device is the best starting point for diagnosis.
See also: Understanding eCPM · How to build a custom report · Available report dimensions