366Published Modified
366 Pré-roll video ad specs
366 Pré-roll video ads are horizontal 16:9 video clips, up to 10 MB per file, up to 30 seconds long, delivered as MP4. They run in the Pre-roll in the video players of 366's partner sites placement on 366.
- 16:9
- 10 MB
- 30 s
Visual
- Aspect ratios
- 16:9
- Max file size
- 10 MB
- File types
- MP4
- Recommended max duration
- 20 s
Video & audio
- Max duration
- 30 s
Notes & source
- MP4 at 16:9 ("ratio 16.9" as written) under 10 MB, 5 MB recommended
- Under 30 seconds, 20 seconds recommended
- Or a VAST 2.0/3.0/4.0 URL
- VPAID 2.0 is accepted but not recommended ("non recommandé")
- VPAID redirects are not accepted for in-read
- The PDF is a table
- Its text layer lists the sizes and weights column by column, so the row each value belongs to was read from the PDF's layout (text positions)
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