Case: sticky sidebar on desktop = +$2.60 RPM

Case: sticky sidebar on desktop = +$2.60 RPM

Long-form tech site, n=1, 28d, desktop (54% of traffic). Made the right-rail 300×600 sticky so it stays viewable through long articles instead of scrolling off at paragraph 3.

Sidebar viewability 44% → 79%
Desktop session RPM $19.30 ▮▮▮▮▮▮ → $21.90 ▮▮▮▮▮▮▮

The 300×600 is a premium size; keeping it in-view across a 2,000-word read multiplied its viewable impressions per session.

So what: long content wastes sidebar slots unless they're sticky. ▲13.5%