VAST 4.0 Specification

Description

The Video Ad Serving Template (VAST) 4.0 is a standard developed by the Interactive Advertising Bureau (IAB) that provides a common protocol for serving in-stream video ads. It defines the structure for ad responses and supports various ad formats, including linear and non-linear ads. Implementing VAST 4.0 ensures compatibility with a wide range of video players and ad servers.

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