A metric showing impressions where at least 50% of the ad was visible for 1 second (display) or 2 seconds (video).
A pricing model where advertisers pay per 1,000 viewable impressions, as defined by Google’s Active View technology. This is the metric active view CPM (Cost Per Mile), which means that at least 50% of an ad must be in view for 1 continuous second for a display ad and 2 seconds for video. This ensures advertisers are charged only when their ads are likely to be seen.
Optimizes ad spend by focusing on the actual viewability of the ad rather than just impressions.








