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1080×1080
shown at 20%
Right Column Image Ad (desktop)
Other
- Size (px)
- Ratio
- 1:1
TripleLift — Programmatic Native (OpenRTB) — Main Image
Other · Native · Verified 2026-07
Live preview
1200×627
shown at 38%
In context
Sample feed post
Full specification
Size (px)
Ratioflexible (0.5x–2.0x of target placement ratio)
Max weight5 MB
FormatsJPG, PNG, GIF
Text limits
Title
75 chars
Description
200 chars
Advertiser name
25 chars
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.
Frequently asked questions
What size is the TripleLift Programmatic Native (OpenRTB) — Main Image?
The TripleLift Programmatic Native (OpenRTB) — Main Image is 1200×627 px, aspect ratio flexible (0.5x–2.0x of target placement ratio).
What is the aspect ratio of the TripleLift Programmatic Native (OpenRTB) — Main Image?
flexible (0.5x–2.0x of target placement ratio). At the recommended resolution that is 1200×627 px.
What is the maximum file size for the TripleLift Programmatic Native (OpenRTB) — Main Image?
Up to 5 MB, in JPG, PNG, GIF.
What file formats does TripleLift accept for the Programmatic Native (OpenRTB) — Main Image?
JPG, PNG, GIF.
Why does TripleLift crop my Programmatic Native (OpenRTB) — Main Image?
TripleLift shows Programmatic Native (OpenRTB) — Main Image at flexible (0.5x–2.0x of target placement ratio). Upload exactly 1200×627 px and keep key content in the safe area so nothing gets cut off.
Is 1200×627 still correct for the TripleLift Programmatic Native (OpenRTB) — Main Image in 2026?
Yes. Last verified 2026-07 against the official TripleLift documentation.
Check your creative
Test a file against this exact spec before you upload it anywhere.
Nothing is uploaded or saved — the check runs entirely in your browser.