Case: +$3.20 session RPM from one lazy-load tweak

Case: +$3.20 session RPM from one lazy-load tweak

Recipe publisher, n=1 site, 41-day before/after. Viewability (% of ad impressions actually seen ≥1s) sat at 48% because ads loaded eagerly above the fold and scrolled past unseen.

Fix: lazy-load every slot, fire 200px before viewport entry.

Viewability 48% → 71%
Session RPM $9.40 ▮▮▮▮ → $12.60 ▮▮▮▮▮▮
Fill rate unchanged (94%)

Viewable CPMs rose because buyers pay more for confirmed-seen inventory. No new ad units added.

So what: viewability is the cheapest RPM lever you own. ▲34%