Video content is popular for online advertising. However, visitors often consider video ads as a disruptive experience. This is especially true when a video distracts them from their goal (such as reading a news article). Therefore, there are some guidelines for video ads to not alienate visitors due to a bad ad experience.
In-stream and Outstream Guidelines
In-stream video ads involve ad placements within a video. Even though in-stream video ads are vulnerable to ad blockers, they remain popular. Outstream video has an advantage over in-stream video because it delivers video ads anywhere with no limits related to ad placements.
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In-stream Video: Linear video ads (such as pre-roll, mid-roll, and post-roll) are among the most popular video ads delivered within video content. However, visitors consider long pre-roll ads that can't be skipped and all mid-roll ads among the most intrusive ad types. Therefore, all pre-roll video ads longer than 31 seconds must provide a way for visitors to skip the ad within the first 6 seconds of ad play.
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Outstream Video: Originally, outstream video ads got visitors’ attention by launching an autoplay video with the sound on. However, visitors find such videos to be the most distracting ads and frustrating. The current guideline suggests that autoplay video ads can only be in silent mode with sound intentionally activated by the visitor.
VAST and VPAID
Video Ad Serving Template (VAST) is a script for video players to run video ads in partnership ad servers. Adform supports the VAST 2.0, VAST 3.0, VAST 4.0, 4.1, and 4.2.
Video Player Ad Interface (VPAID) is also a script for video ads to interact with video players, but it allows rich media. With VPAID, because of rich media, advertisers can gather information about how visitors interact with their video ads. Adform supports VPAID 2.0 for any standard video banner.
Video OTT/CTV
Over the Top (OTT) video ads are advertisements delivered through Connected TV (CTV) platforms, including game consoles, streaming devices, and smart TVs, as well as other digital devices like desktops and mobile phones.
Video Guidelines
For video ads, use the following guidelines:
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File Types |
.mp4, .mpg, .mov, .webm, .ogv, .mpeg, .m4v, .mkv |
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Max File Size |
100 MB |
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Audio Format |
Stereo MP3 or ACC preferred |
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Sampling Rate |
48,000 Hz (standard) or 96,000 Hz (professional) |
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Video Codec |
When using the MP4 video format: H.264 (recommended) Optimize for Web viewing and generate progressive scan with no interlacing |
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Ad Formats |
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Bitrate |
(Low 240P) 300 – 2000 kbps (1080P Full HD) |
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Resolution |
Recommended Full HD (1080P) |
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Companion Banners |
File Types: .png, .jpeg (.jpg), .gif Ad Sizes: 1024x768, 970x250, 320x480, 300x250, 300x600, 1x1 (and possible custom sizes depending on the placement) |