VAST Video File Size Detector

Scan Your VAST Video to detect the video file size.

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

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Ad Tag

VAST

Video

Image

Audio

Validate against:

Ad Spec: IAB Ad Guidelines

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File Size

The total size (in bytes) of the video.

Why do we test it?

Higher file sizes require users to have a higher bandwidth. To avoid buffering or stalling, the file size (bytes) divided by the video duration (seconds) should not exceed the user's bandwidth (in Mbps).