Active View Measurable

The percentage of impressions that were measurable with Active View, out of the total number of impressions. This metric only includes impressions from regular AdSense for content, AdSense for video and AdSense for games ad units, it doesn't include data from link units, or data from dynamic allocation in Google Ad Manager. Learn more

Even when an ad has Active View, some factors may prevent the tag from capturing data. For example, if the publisher ad tag is placed within a cross-domain iframe, its viewability may not be measurable. Also, when an ad's backup image displays or a default ad serves, the impression does not count as measurable.
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