VAST-2.0-url-invalid

Q: How do I fix VAST-2.0-url-invalid?

Ensure the URL includes a valid protocol (`https://`), has no unencoded spaces, and uses properly escaped special characters (e.g. `&` for `&`).

URL field does not appear to be a valid URI

WarningSecurityIAB VAST 2.0 §2VAST 2.0 and later (all versions)

The value of a URL field does not conform to the URI syntax (RFC 3986). Common causes: unencoded spaces, missing protocol, or misplaced CDATA markers. The player may fail to fetch the resource.

How to fix

Ensure the URL includes a valid protocol (https://), has no unencoded spaces, and uses properly escaped special characters (e.g. & for &).

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Other Security rules

VAST-2.0-mediafile-https<MediaFile> URL uses HTTP instead of HTTPS VAST-2.0-tracking-httpsTracking or click URL uses HTTP instead of HTTPS VAST-2.0-url-emptyURL field is empty