VAST XML Content-Type Detector
Scan Your VAST Video to determine the XML content-type.
Paste a VAST tag URL and check compliance, media files, wrappers and ad delivery issues in seconds.
Go ahead, just
copy/paste your tag !
What will the results look like?
If you use the VAST tag tester above, the results will look something like this. Unlike other VAST validators, AdValify performs multiple pass/fail tests to see if the tag aligns with your (customizable) ad specification.
For example: max 1 wrapper, dimensions of 1920x1080 pixels, AAC audio codec required, audio loudness -24 LUFS, etc.



AdValify is proudly used by 4,800+ advertising teams, including:
Perform 44+ ad quality tests in < 10 seconds
Which tests are performed?
AdValify is a comprehensive ad testing tool. It not only checks if the ad is working, but also if it complies with YOUR ad specification.
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Contains VPAID
Determines if the VAST tag contains a VPAID video.
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Wrapper Redirects
Determines if the VAST tag is wrapped in another VAST tag, and how many times.
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Audio Loudness
Loudness Units Full Scale (LUFS) is a standard measure of perceived audio loudness.
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Video Dimensions
The dimensions of a video are measured in pixels (e.g. 1920x1080 for Full HD).
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Video Duration
The duration of the video in seconds. Common ad durations are 10, 15 or 30 seconds.
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Video Bit Rate
The video bit rate defines the amount of data stored for every second of video.
... and 38+ additional ad quality tests. See all tests