VAST Guidelines


Approved Vendors
  • Doubleclick
  • Innovid
  • Sizmek
SSL Compliance Tags must be secure and SSL compliant
Ad Components
  • All standard VAST tags are required to include multiple bit rates of the same video ad.
  • Client 3rd party ad server should provide this functionality. Please check with your 3rd party ad server representative to confirm.
  • This is to allow the video player to choose the best file size for the bandwidth of the user, to provide the best user experience with the highest quality video content without buffering.
  • VAST ads must not include skippable or other advanced functionality.


A standard VAST tag requires a minimum of 3 MP4 (H.264) format video files with the following approximate bitrates.

Bitrate 300-700 kbps 700-1500 kbps 1500+ kbps
Resolution 640×360 1024×576 1280×720


Accepted aspect ratios 4:3 or 16:9
Audio requirements
  • Audio codec: AAC
  • Audio bitrate: 48 kHZ, 2 Channel, 128 kbps
  • Audio level: -21dB to -9dB max. -24 LKFS (+/- 2.0 dB)

VAST Guidelines

Syncing our video players with ad servers.

VPAID Guidelines

Syncing our video players with ad servers.

SWM Hosted Video

Video ad inventory hosted by SWM.

Supported brands

HTML5 Ad Guidelines

Ad Submission Guidelines

Approved Vendors

View all Video Formats


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