What is fill rate?
Fill rate is the ratio of how many requested ads were actually delivered.
- Fill rate percentage = (ads delivered / ads requested) × 100
- Fill rate depends on how many advertising campaigns are running on Chartboost's network at that given time.
- Fill rate can also be affected by targeting settings in your campaign (e.g. location, devices, exclusion lists), connectivity issues, timeouts, download performance, and Chartboost's ad server logic.
- If you're in a country with low fill rate, you may face fill rate issues when trying to serve impressions.