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Fill-Rate

Description

Fill Rate measures how many ad requests are successfully filled with ads, indicating monetization efficiency.

Definition

Fill Rate = (Ad Impressions / Ad Requests) × 100. It shows how well an app is monetizing available inventory.

Why Is Fill-Rate Important for App Marketers?

A high fill rate means optimized demand and fewer missed revenue opportunities. A low rate may signal issues with pricing, geo demand, or SDK performance.

Where You Can Use Fill-Rate

Mediation tools, monetization dashboards, waterfall bidding, yield optimization, campaign diagnostics.

What Are the Best Practices

  • Use mediation, track per geo/device, set optimal floors, analyze with eCPM, add fallback creatives.
Fill Rate is a direct indicator of your monetization health—optimizing it can unlock hidden revenue.