Ad Specs Cheat Sheet
Creative specifications for every major channel, in one place. Print or save as PDF.
Last updated: 2026-08
Streaming TV (CTV/OTT)
- Format
- MP4 (H.264), 16:9
- Resolution
- 1920x1080 minimum
- Duration
- 15 or 30 seconds (non-skippable)
- Bitrate
- 15-30 Mbps recommended
- Audio
- AAC, -24 LKFS, 192 kbps+
YouTube
- Format
- MP4, 16:9 (in-stream)
- Resolution
- 1080p recommended
- Duration
- Skippable: any (15-60s ideal); Bumper: 6s
- File size
- Up to 256 GB
Display
- Top sizes
- 300x250, 728x90, 320x50, 160x600, 300x600, 970x250
- Format
- JPG, PNG, GIF, HTML5
- Max file size
- 150 KB (HTML5: 200 KB initial load)
Streaming Audio
- Format
- MP3 or WAV/OGG
- Duration
- 15 or 30 seconds
- Bitrate
- 192 kbps minimum
- Companion banner
- 640x640 or 300x250 (platform dependent)
Paid Social (Meta)
- Feed image
- 1080x1080 (1:1), JPG/PNG
- Feed video
- 1:1 or 4:5, MP4, up to 4 GB
- Stories/Reels
- 1080x1920 (9:16)
- Primary text
- 125 characters before truncation
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