: Guide the eye with high-contrast colors for headlines and CTAs. Ensure the brand logo covers roughly 10-15% of the ad space for recognition.
: A banner must communicate its value within a fraction of a second. Overloaded designs with too many elements distract from the core message.
: In programmatic buying, quality of placement is overtaking raw volume as a primary metric. There is a crackdown on "Made for Advertising" (MFA) sites in favor of premium, transparent inventory.
