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VAST Video Mime-Type Detector

Scan your VAST Video to detect the video mime-type.

Check 37+ ad quality tests for ad performance — validate against IAB VAST ad guidelines

Go ahead, just
copy/paste your tag !
HTML5 Zip
Ad Tag
VAST
Video
Image
Audio
Validate against:
Ad Spec: IAB Ad Guidelines
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Video Mime-Type

The MIME type describes the type of media being used, such as video/mp4 or video/webm.

Why do we test it?

The MIME type is essential for proper file recognition and delivery. Ensuring the correct MIME type helps avoid playback issues or misinterpretation by ad servers.