VAST Video Placement Types and Tracking Options

All the video placement types we can see in VAST video bid requests are in the table below.

ValuePlacement typeWhat it means
1In-StreamPlays before, during or after the video content the viewer chose to watch (pre-roll, mid-roll, post-roll).
2In-BannerPlays inside a display banner slot, so it needs display ad space on the page.
3In-ArticleStarts playing between paragraphs of an article, as a standalone message.
4In-FeedAppears inside a content, social or product feed.
5Interstitial / Slider / FloatingStays on screen while shown, covering all or part of it. A full-screen interstitial is marked separately in the bid request (imp.instl).

Source: IAB Tech Lab OpenRTB 2.5, section 5.9 Video Placement Types (OpenRTB standards).


Revision #5
Created 22 September 2021 09:27:05 by Tomas Ivanauskas
Updated 9 November 2026 08:59:14 by Roberta Karpoviciute