What is outstream video advertising?
How outstream video works, how it differs from instream, and how publishers make it work for readers and buyers.
Written by Samhub with the help of AI·Updated 13 Oct 2026·3 min readOutstream video is a video ad that plays inside an article or feed, without any video content around it, usually starting muted when it scrolls into view.
Instream vs outstream
| Instream | Outstream | |
|---|---|---|
| Plays | Before or during video content | Inside text content |
| Needs video content | Yes | No |
| Sound | Often on | Usually off until tapped |
Common formats
In-article
Opens between paragraphs.
In-feed
Inside a list of articles.
Sticky
Stays in a corner while reading.
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Measure what matters
Buyers judge outstream on viewability and completion rate. Players that start only when visible and stop when scrolled away keep both high.
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