VAST

Validates VAST video ad creatives (2.0–4.3) — XML structure, required nodes, media files, tracking, and consistency with the OpenRTB video impression when paired.

Category: AdTech
Maturity: beta
Transports: http
Content: xml
Spec versions: 2.0, 3.0, 4.0, 4.1, 4.2, 4.3
Tags: xml, video, ctv

Rules (11)

Rule	Severity
`vast.adverifications-node`	warning
`vast.error-pixel`	warning
`vast.impression-required`	error
`vast.mediafile-attrs`	error
`vast.mezzanine-ssai`	warning
`vast.parse-projection`	error
`vast.quartile-tracking`	warning
`vast.universaladid-4x`	error
`vast.version-attribute`	error
`vast.wrapper-depth-declared`	warning
`vast.wrapper-flags`	warning