Reference / Glossary / Measurement
Streaming Impression
One ad served in a streaming environment, counted by the ad server or SSAI system. Streaming impressions differ from linear ratings in being counted rather than estimated, and from web impressions in being nearly always fully viewable and complete, which is why CTV viewability reporting is less informative than frequency reporting.
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Cite this entry:
Agency Echelon. "Streaming Impression." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/streaming-impression/