WTF is the difference between in-stream and out-stream video ads?

pivot to video

This article is a WTF explainer, in which we break down media and marketing’s most confusing terms. More from the series →

There are two main types of video ads: in-stream and out-stream. 

As the names imply, one type refers to ads that are streamed alongside a video — like pre-roll and mid-roll ads — whereas the other type describes video ads that appear independent of any editorial video content. Except the placement of these video ads is no longer the only distinction between the two types.

In August, the IAB Tech Lab issued guidelines for digital video and connected TV ad formats, and these guidelines introduced a new distinguishing characteristic that separates in-stream and out-stream video ads, as illustrated in the video below.

https://digiday.com/?p=478198

More in Future of TV

Future of TV Briefing: How sports will hog the ball in this year’s upfront

This week’s Future of TV Briefing looks at how live sports will likely be used by TV networks and streaming services in this year’s upfront to drive advertiser demand for non-sports programming.

WTF is IAB Tech Lab’s Ad Creative ID Framework?

ACIF provides a system for unique identifiers to be attached to ads so that companies can better track which ads are being sent across the streaming ad supply chain.

Future of TV Briefing: Is YouTube TV? (2025 edition)

This week’s Future of TV Briefing looks at the perpetual question of whether advertisers consider YouTube on par with traditional TV and streaming services.