Configure outstream video ads in Prebid.js using Index's outstream ad unit

Media Owners
Last Updated: February 12, 2026

Media Owners using Index Exchange (Index) as a bidding adapter in Prebid.js can show outstream video ads on their site by using Index's outstream ad unit. This allows a video ad to run inside of a standalone video player on a media owner's site. Outstream video ads offer a richer advertising experience for users and bring higher CPMs than display. This solution is ideal for Media Owners who don't have their own outstream ad unit to use on their site, and would not otherwise be able to receive our outstream demand.

Getting started

Follow the steps in our bidding adapter documentation on the Prebid site.

Privacy Policy

Index liaises with a third party to provide this outstream ad unit; this third party takes a processor position to Index's position as a controller. They receive IP addresses to facilitate delivery of outstream video ads. More information on this can be found in Index's Privacy Policy.

Please note that your use of the outstream ad unit will be governed by and subject to the terms and conditions of i) any master services or license agreement entered into by you and Index Exchange; ii) the information provided within this page as well as on our Knowledge Base linked here, and iii) our Privacy Policy. Your use of Index's outstream ad unit constitutes your acknowledgement and acceptance of the foregoing.