> ## Knowledge Base Index
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> Use this file to discover available pages before exploring further.
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# Using Device and Geo Breakdown Reports for Publishers

## Introduction

Device and geo breakdowns show where your audience comes from and how performance differs. This article explains how publishers can use these views.

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## Device Breakdown

Use the device filter or grouping to:

* Compare desktop, mobile, and tablet performance.
* See which device type generates the most impressions and revenue.
* Adjust layouts if one device performs significantly worse.



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## Geo Breakdown

Geo views group results by country or region. Use them to:

* Understand which locations drive the most revenue.
* Spot markets with strong traffic but low revenue per impression.
* Decide where to focus content or traffic acquisition efforts.

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## Combining Device and Geo Insights

* Filter by one device and review geo results for that segment.
* Track whether layout or placement changes affect particular regions.
* Use these insights to plan experiments on high-value combinations.

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## Related Articles

[Optimizing Ad Density on Publisher Pages](https://helpdesk.ezmob.com/en/article/which-ad-formats-can-publishers-monetize-with-1it03t4)
[Understanding Publisher Revenue Reports](https://helpdesk.ezmob.com/en/article/when-reports-for-publisher-are-being-updated-twdu77)
[Monitoring Ad Performance in the Publisher Dashboard](https://helpdesk.ezmob.com/en/article/choosing-the-right-ad-format-1s2gqg4)
[A/B Testing Publisher Placements](https://helpdesk.ezmob.com/en/article/how-to-update-a-publishers-feed-bid-tfxbe7)