Vertical vs horizontal scaling — pick by what's breaking

Vertical vs horizontal scaling — pick by what's breaking

Hit a scaling cliff (spend climbs, results don't)? The fix depends on the bottleneck:

— Vertical = pour more budget into the same winners. Cheap, fast, but creative fatigue and rising costs cap you quick.
— Horizontal = clone into new audiences, placements, geos, new creatives. Slower, more management, but it's how you actually break a ceiling.

Diagnose first:
— Frequency still under 2 and CPA stable? Go vertical, you've got room.
— Frequency climbing, CPMs rising on the same audience? You're saturated — go horizontal or you're just paying more to reach the same people.

Risk: horizontal multiplies your testing cost and admin load fast.

Add ONE new angle before you spin up ten.