Diagnose
Visual score at real mobile feed size (168×94). Contrast, focus, clutter, and an attention map from the pixels - not a CTR prediction, and no audience required.
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PNG, JPG or WebP · Max 50 MB · Ideal 1280×720
Feed size · 168×94
168×94
Most clicks are decided at this size on mobile. Diagnose reads this crop, not the fullscreen file.