If you want your Line item to aim for a specific viewability threshold, check the ‘Enable Viewability Targeting’ box, and enter the viewability threshold you wish to target in the ‘Viewability Target’ area. Note that it is not recommended to deploy this feature for CTV or In-App campaigns as this targeting is not typically available in these environments, and it can prevent the Line from serving.

The viewability is not a guarantee, but rather a benchmark. The platform will determine how likely an impression is to be viewable through pre-bidding technology. Per IAB guidelines, an ad is considered viewable if 50% of the pixels are in-view for 1 second or more. Using a high threshold may limit delivery of the Line. While the IAB benchmark for viewability is 70%, this may limit the number of impressions that can be won causing the campaign to under pace. If using a strict viewability threshold, consider increasing your bid to stay competitive and maintain scale. Balancing viewability and delivery is crucial. Higher thresholds reduce available inventory, potentially leading to under-pacing.