All TripleLift sizes

Placement	Ratio	Max weight	Formats	Video	Text limits	Confidence
1. In-Feed Native — Static Image Landscape	16:9	10 MB	JPGPNG	—	3	Medium confidence — verified against reputable sources
Notes & best practice Core managed-service In-Feed Native unit for desktop and mobile. Uses a static JPEG or PNG image under 10 MB; animated GIFs run as the separate Cinemagraph unit. Requires a click-through URL that opens in a new tab. Only HTTPS tracking pixels and monitoring tags are accepted. Headlines must go beyond the brand name, and body copy must include a clear CTA. Full specification Size (px) Ratio 16:9 Max weight 10 MB Formats JPG, PNG Text limits Headline30chars Description140chars Advertiser name30chars Medium confidence — verified against reputable sources Source: docs.google.com (opens in a new tab)
2. In-Feed Native — Square / Multi-Ratio Source Image Square	1:1	10 MB	JPGPNG	—	3	Medium confidence — verified against reputable sources
Notes & best practice For its Wizard workflow, TripleLift recommends a 1200x1200 (1:1) source image. That figure comes from a 2021 TripleLift FAQ; TripleLift's August 2026 Creative Asset Guide recommends 1280x720 (16:9) for native images. Submitted images must have an aspect ratio within 0.5x to 2.0x of the target placement ratio. For example, a 1.5 ratio target accepts image ratios from 0.75 to 3.0. Keep key subject matter centered within a safe area to avoid being cropped out. Full specification Size (px) Ratio 1:1 Max weight 10 MB Formats JPG, PNG Text limits Headline30chars Description140chars Advertiser name30chars Medium confidence — verified against reputable sources Source: triplelift.my.site.com (opens in a new tab)
3. In-Feed Native — Cinemagraph (Animated) Landscape	16:9	10 MB	GIF	Up to 6 seconds	3	High confidence — confirmed in the official documentation
Notes & best practice Animated in-feed unit. Recommended size is 1280x720 (16:9). Accepts animated GIF only. Maximum 6-second loop. Recommended frame rate is 16 FPS. File size must be under 10 MB. Copy limits are identical to the static in-feed unit. Full specification Size (px) Ratio 16:9 Max weight 10 MB Formats GIF Max duration Up to 6 seconds Text limits Headline30chars Description140chars Advertiser name30chars High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
4. In-Feed Native — Carousel Carousel	16:9	10 MB	JPGPNG	—	3	High confidence — confirmed in the official documentation
Notes & best practice Native carousel of 3 to 5 static images. TripleLift recommends 1280x720 (16:9) JPEG or PNG images under 10 MB, free of text. Each image can have its own headline and landing page; caption and brand name limits match the static in-feed unit. A logo is supplied too (300x300 minimum, transparent PNG recommended). Full specification Size (px) Ratio 16:9 Max weight 10 MB Formats JPG, PNG Text limits Headline30charsper card Description140chars Advertiser name30chars High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
5. In-Feed Native — Window Vertical / Portrait	2:3	10 MB	JPGPNG	—	3	High confidence — confirmed in the official documentation
Notes & best practice Static portrait image for TripleLift's Native Window format. TripleLift recommends 1000x1500 pixels and accepts 500x800 at minimum, as JPEG or PNG under 10 MB and free of text. Copy limits match the static in-feed unit: headline 30, caption 140 and brand name 30 characters. Full specification Size (px) Ratio 2:3 Max weight 10 MB Formats JPG, PNG Text limits Headline30chars Description140chars Advertiser name30chars High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
6. Branded / Native Video Video	16:9	—	MP4MOVWEBM+7	Up to 30 minutes	3	Medium confidence — verified against reputable sources
Notes & best practice In-feed native video. 16:9 is the recommended aspect ratio; TripleLift accepts resolutions up to 1920x1080, and 1280x720 is a standard 16:9 size. TripleLift recommends 6 to 30 seconds and supports videos up to 30 minutes. Video autoplays with sound off, and users can click to turn sound on. Looping is prohibited; users must click to replay. Video is delivered as a secure VAST or VPAID 2.0 tag, and TripleLift does not publish a file-size limit. Accepted formats include AVI, MOV, MP4, MPEG, MPG, OGA, OGG, OGV, WEBM, and WMV. A companion logo asset is also required. Full specification Size (px) Ratio 16:9 Max weight Not officially published Formats · Video MP4, MOV, WEBM, AVI, MPEG, MPG, WMV, OGG, OGV, OGA Max duration Up to 30 minutes Text limits Headline30chars Description140chars Advertiser name43chars Medium confidence — verified against reputable sources Source: docs.google.com (opens in a new tab)
7. Retail Media — Hero Image (16:9) Landscape	16:9	—	JPGPNG	—	1	High confidence — confirmed in the official documentation
Notes & best practice Retail Media ad that pairs a hero visual with 3 priority products (up to 10 SKUs as backups), each linking to a product detail or add-to-cart page. The hero is a 16:9 PNG or JPG from 400x225 up to 1920x1080, or a 16:9 or 9:16 video of 6 to 30 seconds; the vertical video carries a heading of up to 30 characters. Add a 1:1 transparent PNG logo of at least 300x300, and check with TripleLift that your DSP supports the format. Full specification Size (px) Ratio 16:9 Max weight Not officially published Formats JPG, PNG Text limits Headline30charsvertical video only High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
8. Brand / Sponsor Logo Other	1:1	5 MB	JPGPNG	—	1	Medium confidence — verified against reputable sources
Notes & best practice Companion logo asset for in-feed native and video units. Minimum size is 300x300 px. TripleLift recommends supplying two versions, one for light and one for dark backgrounds. A transparent PNG is recommended. Full specification Size (px) Ratio 1:1 Max weight 5 MB Formats JPG, PNG Text limits Advertiser name30chars Medium confidence — verified against reputable sources Source: docs.google.com (opens in a new tab)
9. Programmatic Native (OpenRTB) — Main Image Other	1.91:1	5 MB	JPGPNGGIF	—	3	Medium confidence — verified against reputable sources
Notes & best practice TripleLift passes target dimensions in the bid request. The submitted image ratio must be within 0.5x to 2.0x of the target ratio. For example, a 750x500 target (1.5 ratio) allows image ratios from 0.75 to 3.0. OpenRTB minimum main image is 6x6 px, but images should be over 200px wide. Logo minimum is 25x25 px. Recommended size is 1200x627. Character limits: Title 75, Description 200, Advertiser 25. Full specification Size (px) Ratio flexible (0.5x–2.0x of target placement ratio) Max weight 5 MB Formats JPG, PNG, GIF Text limits Title75chars Description200chars Advertiser name25chars Medium confidence — verified against reputable sources Source: docs.triplelift.com (opens in a new tab)
10. High Impact Display — Square Image (Flipbook, Multi-Action, Collection) Square	1:1	10 MB	JPGPNG	—	3	High confidence — confirmed in the official documentation
Notes & best practice Square image used by TripleLift's Multi-Action, Flipbook and Collection high-impact display formats. Images are 1:1, at least 500x500, JPEG or PNG under 10 MB, with a 1:1 logo. Flipbook takes 3 to 10 images with captions of up to 35 characters, Collection pairs a 5:4 hero image with 3 square ones, and Multi-Action carries up to 3 CTAs. The ads render in display slots including 300x250 and 300x600, plus 970x250 for Flipbook and Collection. Full specification Size (px) Ratio 1:1 Max weight 10 MB Formats JPG, PNG Text limits Advertiser name30chars Headline50chars CTA14chars High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
11. High Impact Display — Vertical Video (9:16) Vertical / Portrait	9:16	—	MP4	—	2	Medium confidence — verified against reputable sources
Notes & best practice High-impact display unit with a 9:16 MP4 hero video, 3 square supporting images (each with its own landing page) and a 1:1 light or white PNG logo; sound plays only when the user turns it on. It renders in 300x250, 300x600, 336x240 and 970x250 slots. TripleLift states only the 9:16 ratio, so 1080x1920 is a common size for that ratio, not a TripleLift figure. Copy limits are 30 characters for the advertiser name and 50 for the headline. Keep key content and text inside the safe zone — the platform UI overlaps the top and bottom of full-screen 9:16 creatives. Full specification Size (px) Ratio 9:16 Max weight Not officially published Formats · Video MP4 Text limits Advertiser name30chars Headline50chars Medium confidence — verified against reputable sources Source: docs.google.com (opens in a new tab)
12. CTV Pause Ad — Brand Image Landscape	16:9	—	PNG	—	1	High confidence — confirmed in the official documentation
Notes & best practice Shown when a viewer pauses a CTV stream, either as a slideshow of 3 to 5 images or as one static image, in a fixed template. Supply PNG brand images of at least 1920x1080 with a non-transparent background, or a 0:15 or 0:30 CTV spot plus timestamps of the frames to use. Optional extras are a logo (transparent PNG, 800x800 recommended, 240x240 minimum), a headline of up to 60 characters and a QR code. In the slideshow, keep text and logos out of the lower third of the frame. Full specification Size (px) Ratio 16:9 Max weight Not officially published Formats PNG Text limits Headline60chars High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
13. In-Stream & CTV Spot — Video (16:9) Video	16:9	—	MP4MOV	5 seconds to 5 minutes	—	High confidence — confirmed in the official documentation
Notes & best practice In-stream video that plays before, during or after online video content, plus standard CTV spots, run through a DSP's video or CTV workflow as VAST; VPAID is not accepted for CTV. TripleLift asks for 16:9 HD (1920x1080 or 1280x720; 1440x1080 only for 4:3 source) in MP4 or MOV, H.264, 30 fps, with AAC stereo audio at 192 kbps and 48 kHz. Spots of 6 to 30 seconds are recommended, and 5 seconds to 5 minutes is supported. For Enhanced Spots, and Pause Ads cut from the spot, supply a 0:15 or 0:30 mezzanine file of at least 1920x1080 at 15,000 kbps, 29.97 or 23.98 fps. Full specification Size (px) Ratio 16:9 Max weight Not officially published Formats · Video MP4, MOV Max duration 5 seconds to 5 minutes (6-30 seconds recommended) High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
14. CTV Enhanced Spot — Social Extension Video (9:16) Vertical / Portrait	9:16	—	—	15 or 30 seconds	1	High confidence — confirmed in the official documentation
Notes & best practice Enhanced Spot that brings a vertical social video to CTV inside a fixed template with a QR code, brand logo, product image and one line of copy. Supply a vertical mezzanine file of 0:15 or 0:30, at least 1080x1920, at 18,000 kbps and 29.97 or 23.98 fps. The template also takes a transparent PNG logo and product image (800x800 recommended), a tagline, headline or CTA of up to 40 characters, 2 brand HEX colors and the QR destination URL. Keep key content and text inside the safe zone — the platform UI overlaps the top and bottom of full-screen 9:16 creatives. Full specification Size (px) Ratio 9:16 Max weight Not officially published Max duration 15 or 30 seconds Text limits Headline40charstagline, headline or CTA High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
15. CTV In-Show — Split Screen Video (0:06) Video	16:9	—	—	6 seconds	1	High confidence — confirmed in the official documentation
Notes & best practice Optional video for the Split Screen in-show CTV ad, which appears within programming and scales back the show's video to feature the brand; several fixed templates are available. Supply a 0:06 clip without audio, 16:9 at 1920x1080 or larger, as a 15,000 kbps mezzanine file at 29.97 or 23.98 fps. The ad also uses a transparent PNG logo and product images (800x800 recommended) and a tagline, headline or CTA of up to 40 characters. Full specification Size (px) Ratio 16:9 Max weight Not officially published Max duration 6 seconds Text limits Headline40charstagline, headline or CTA High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
16. CTV Enhanced Spots & In-Show — Product Image Square	1:1	—	PNG	—	1	High confidence — confirmed in the official documentation
Notes & best practice Product image for TripleLift's CTV Enhanced Spots (Product Spotlight, Social Extension) and In-Show ads (L-Bar with up to 2 images, Split Screen, Dynamic Overlay with up to 3). TripleLift asks for a PNG on a transparent background, 800x800 recommended and 550x550 minimum. The templates are fixed; most also carry a tagline, headline or CTA of up to 40 characters and 2 brand HEX colors. Full specification Size (px) Ratio 1:1 Max weight Not officially published Formats PNG Text limits Headline40charstagline, headline or CTA High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)
17. CTV — Brand Logo (Enhanced Spots, In-Show, Pause Ads) Other	1:1	—	PNG	—	—	High confidence — confirmed in the official documentation
Notes & best practice Brand logo for TripleLift's CTV Enhanced Spots (Product Spotlight, QR Spot, Social Extension) and In-Show ads (L-Bar, Split Screen, Dynamic Overlay), and an optional extra on Pause Ads. Use a PNG on a transparent background, 800x800 recommended and 240x240 minimum. This is a separate spec from the native logo, which has a 300x300 minimum. Full specification Size (px) Ratio 1:1 Max weight Not officially published Formats PNG High confidence — confirmed in the official documentation Source: docs.google.com (opens in a new tab)

High confidence — confirmed in the official documentation Medium confidence — verified against reputable sources Lower confidence — changes frequently, verify before launch shortened, full wording in the row details

Minimum creative kit

Layouts: 6 · placements covered: 15 of 17

Layout	Max weight	Formats	Covers
16:9Image	10 MBfor 1280×720 px	—	In-Feed Native — Static Image In-Feed Native — Cinemagraph (Animated)In-Feed Native — Carousel Retail Media — Hero Image (16:9)CTV Pause Ad — Brand Image
1:1Image	10 MB	PNG	In-Feed Native — Square / Multi-Ratio Source Image High Impact Display — Square Image (Flipbook, Multi-Action, Collection)CTV Enhanced Spots & In-Show — Product Image
16:9Video	—	—	Branded / Native Video In-Stream & CTV Spot — Video (16:9)CTV In-Show — Split Screen Video (0:06)
9:16Video	—	—	High Impact Display — Vertical Video (9:16)CTV Enhanced Spot — Social Extension Video (9:16)
2:3Image	10 MB	JPGPNG	In-Feed Native — Window
1.91:1Image	5 MB	JPGPNGGIF	Programmatic Native (OpenRTB) — Main Image

Not in the kit (avatars and formats without a pixel size): Brand / Sponsor Logo, CTV — Brand Logo (Enhanced Spots, In-Show, Pause Ads)

Text limits

Placements with limits: 15 of 17 · characters unless noted

Placement	Headline	Advertiser name	Description	Title	CTA
In-Feed Native — Static Image	30	30	140	—	—
In-Feed Native — Square / Multi-Ratio Source Image	30	30	140	—	—
In-Feed Native — Cinemagraph (Animated)	30	30	140	—	—
In-Feed Native — Carousel	30per card	30	140	—	—
In-Feed Native — Window	30	30	140	—	—
Branded / Native Video	30	43	140	—	—
Retail Media — Hero Image (16:9)	30vertical video only	—	—	—	—
Brand / Sponsor Logo	—	30	—	—	—
Programmatic Native (OpenRTB) — Main Image	—	25	200	75	—
High Impact Display — Square Image (Flipbook, Multi-Action, Collection)	50	30	—	—	14
High Impact Display — Vertical Video (9:16)	50	30	—	—	—
CTV Pause Ad — Brand Image	60	—	—	—	—
CTV Enhanced Spot — Social Extension Video (9:16)	40tagline, headline or CTA	—	—	—	—
CTV In-Show — Split Screen Video (0:06)	40tagline, headline or CTA	—	—	—	—
CTV Enhanced Spots & In-Show — Product Image	40tagline, headline or CTA	—	—	—	—

Video specs

Placements: 6 of 17

Placement	Size (px)	Formats	Max duration	Max video
In-Feed Native — Cinemagraph (Animated)	1280×720	—	Up to 6 seconds	—
Branded / Native Video	1280×720	MP4, MOV, WEBM, AVI, MPEG, MPG, WMV, OGG, OGV, OGA	Up to 30 minutes	—
High Impact Display — Vertical Video (9:16)	1080×1920	MP4	—	—
In-Stream & CTV Spot — Video (16:9)	1920×1080	MP4, MOV	5 seconds to 5 minutes (6-30 seconds recommended)	—
CTV Enhanced Spot — Social Extension Video (9:16)	1080×1920	—	15 or 30 seconds	—
CTV In-Show — Split Screen Video (0:06)	1920×1080	—	6 seconds	—