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Video Ad Serving Template (VAST) is a template defined by the IAB to standardize the delivery of video ads, which are played on a publisher's player, across sites.

In Sizmek Ad Suite (SAS), VAST is known as an In-Stream Video. It can be served before (pre-roll), during (mid-roll), or after (post-roll) video content. VAST can contain linear elements and/or companion ads in a variety of combinations.

SAS supports VAST up to version 4.1.

Note

Notes:

  • If your In-Stream ad includes interactive elements, see About In-Stream Video Interactive.

  • If you are building an In-Stream audio, make sure that your publisher or network does not require a DAAST tag instead of a VAST. For more information, see About In-Stream Audio.

Capabilities and Limitations

Feature

Availability

DCO

Yes

Responsive

n/a

Unfriendly iFrame

n/a

MRAID

n/a

Building an In-Stream Video

Since this format is a simple video file, VAST does not require any template. To build the ad, upload the video file and set up your ad in SAS.

Set Up

Share

Share your ad with your media agency.

In-Stream Video Details

Specifications

Dimensions

Any

Maximum duration

None

The publisher or the media technology (for example, DSP) determine the maximum duration.

IAB recommendation: 30 seconds.

Maximum size

1 GB

This is a theoretical limit. Try to optimize the file size to be as lightweight as possible.

While SAS In-Stream ads support a wide range of file formats and can be up to 1GB, ads must also follow the specifications of the publishers or DSPs that will ultimately run the ad.

Tag type

In-Stream

For more information, see Sizmek Ad Suite Ad Formats.

Compatibility

Device

Any

Examples include Web, Mobile Web, In-app.

Dynamic Creative

Supported

For more information, see Introduction to Dynamic Creative.

Publisher Certification

Web

Not required

For more information, see About Publisher Certifications.

In-app

Not required

Programmatic

Recommended

Measurements

Available Metrics

Examples include:

  • Clicks

  • Impressions

  • Viewability

  • UseAction

  • Video Quartiles

  • Video Control

For more information about metrics, see Aggregated Reports: Dimensions and Metrics Glossary.

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