VAST is a standard developed by the IAB to streamline how video ads are delivered and tracked. It's an XML template that enables ad servers and video players to communicate, ensuring ads display correctly across devices and platforms. VAST supports multiple video ad formats, including linear (pre-roll), companion ads, and interactive units. It also facilitates tracking of impressions, errors, and clicks, making it essential for scalable video ad campaigns.
Frequently Asked Questions
What version of VAST should advertisers use for interactive features?
VAST 4.0 or newer is ideal, as it supports advanced interactivity and separates media files from ad serving logic.
How does VAST handle ad errors or failures?
It includes error tracking codes that inform ad servers about issues like playback failure or timeout during load.
Is VAST only used in programmatic buying?
No, it’s used in both direct and programmatic buys to ensure consistent ad playback and measurement across platforms.
Can VAST support server-side ad insertion (SSAI)?
Yes, VAST is compatible with SSAI, allowing seamless ad stitching into content streams for smoother user experiences.
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