VAST Video
VAST Video - is a video ad that is served in a video player on publisher’s page.
As it is a skippable ad format, it is more suitable for longer video ads.
The length of a video for this format can vary from very short non-skippable (5 sec.) to long videos of 6 minutes.
If the video is equal or less than 5 seconds it is served as non-skippable ad and if the duration is from 5 seconds it appears as skippable ad.
The required aspect ratio and dimensions - 720p or below is required, the optional inclusion of 1080p is recommended - either 16:9 or 4:3 aspect ratios are acceptable. (Examples of each are 16:9 - 854x480; 1280x720; 1920x1080 and 4:3 - 480x360; 720x540; 960x720)
Requirements summary:
- File Type: mp4
- Maximum Video file size: up to 5MB.
Here are the examples of VAST video ad on mobiledesktop and desktop:mobile: