VAST-4.1-survey-deprecated
VAST-4.1-survey-deprecated
<Survey> is deprecated as of VAST 4.1
WarningDeprecatedIAB VAST 4.1 §2.3VAST 4.1, 4.2, and 4.3
Short answer
The <Survey> element was deprecated in VAST 4.1 in favour of the <AdVerifications> mechanism. It may be ignored by 4.1-compliant players.
Why this matters in production
This rule is a strong risk signal. Tags with this issue often still parse, but they become brittle across SDKs, SSAI resolvers, and CTV environments. Deprecated features are a long-tail compatibility problem: they may appear to work in one legacy stack and fail silently in newer players, SSAI chains, or device ecosystems. Affected scope: VAST 4.1, 4.2, and 4.3.
How to fix
Remove <Survey> and use <AdVerifications><Verification> with a <JavaScriptResource> element instead.
Check your VAST tag for
VAST-4.1-survey-deprecated and other issues instantly.Validate a tag →Other Deprecated rules
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