VAST Video Mime-Type Detector

Scan Your VAST Video to detect the video mime-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.

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AdValify is proudly used by 4,800+ advertising teams, including:

GroupM using AdValify.io to validate ads
Clorox using AdValify.io to validate ads
Epsilon using AdValify.io to validate ads
Hogarth using AdValify.io to validate ads
Leaf Group using AdValify.io to validate ads
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