What is VAST? The IAB's Video Ad Serving Template (VAST) specification is a universal XML schema for serving ads to digital video players. It provides support for linear pre-roll, mid-roll and post-roll MP4/FLV/WebM video ads as well as non-linear GIF/JPG/PNG, Flash (SWF), text, HTML, <IFRAME> and <SCRIPT> banners. In addition to this it also specifies video tracking events, which enables ...
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