Fill rate refers to the percentage of ad inventory that is successfully filled with paid advertisements. It measures the effectiveness of ad monetization by assessing the percentage of available ad slots that are filled with paid ads.

Significance and uses of Fill Rate

Fill rate is crucial for publishers and ad networks to optimize their revenue. A higher fill rate indicates efficient monetization and maximizes the utilization of available ad inventory.

Example of Fill Rate

A publisher has 1,000 ad slots available on their website for a specific time period. During that period, 900 of the slots are filled with paid advertisements. The fill rate would be calculated as 900 divided by 1,000, resulting in a fill rate of 90%.