VAST (Video Ad Serving Template) is a standardised scripting language developed by the Interactive Advertising Bureau (IAB) in order to allow for communication between ad servers and video players. Since its initial release in 2008 there have been multiple revisions to the standard.
The various iterations of VAST can be found on IAB’s GitHub page which can be accessed from the link below:
Digital Video Ad Serving Template - GitHub
VAST version settings in Advalidation
In Advalidation, you can select one or several of the below options:
- VAST 1
- VAST 2
- VAST 3
- VAST 4
- VAST 4.1
- VAST 4.2
- VAST 4.3
Advalidation's recommendation
Enabling this setting ensures ads are compatible with the VAST version(s) in use in your players/servers.
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