An Ad Impression is recorded each time an ad is displayed to a user on a webpage or app. Impressions measure reach rather than engagement, providing insight into how many people saw the ad. High impression counts indicate strong exposure, but they don’t account for actions like clicks or conversions.

Tracking impressions helps advertisers understand an ad’s reach and potential impact. Combined with engagement metrics, impression data helps evaluate an ad’s effectiveness and informs optimization strategies to enhance visibility and relevance.