Case: lazy bidding cut RPM — they reverted

Case: lazy bidding cut RPM — they reverted

A cautionary one. Health site, n=1, 28d. They moved header-bidding auctions to fire only on scroll-near (lazy) to cut latency.

Eager auctions RPM $17.90 ▮▮▮▮▮▮ | bid timeout 4%
Lazy auctions RPM $15.40 ▮▮▮▮▮ | bid timeout 19%

Lazy auctions had less time to complete before the slot entered view, so 19% timed out unfilled or at low bids. Latency saved, revenue lost.

So what: lazy-load the render, not the auction. ▼14% (reverted)