What are Attentive Seconds?
Attentive seconds is the total time of human visual contact an ad receives. Unlike time-in-view, it measures the gaze — not the pixel's presence on screen.
The metric is typically calculated per second of exposure in which the user's eye is directed at the creative, captured via panel-based eye-tracking and then extrapolated with predictive models to programmatic inventory.
Attentive seconds per thousand impressions (aSPM) and cost per attentive second (CPaS) allow formats and channels to be compared on a common basis — something impressions and clicks never did well.
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