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Parallax

Same ad density. Better impressions. +70% RPM.

+70%
RPM uplift on enabled units
The point

More revenue per impression, not more impressions.

Less is often more with ad placement. Rather than adding slots or refreshing faster, Parallax makes a single impression worth more. It swaps a standard 300×250 for a slightly taller 300×320 in the same placement, with no layout shift and no change to ad density. Quality does the work: viewability climbs to 77.7% from 56.3%, viewable time grows 35%, and stronger signals lift CPMs and fill. Better impressions, not more of them.

+70%
RPM uplift

vs the standard 300×250 in the same placement. Same ad density, same refresh cadence.

+40% / +35%
Viewability / viewable time

Stronger quality signals widen the demand pool and lift CPMs and fill.

300×320
Slightly taller unit

Lifts viewability on inventory that ran a standard 300×250 before, attracting stronger demand and higher CPMs.

What it is

The format, in three lines.

01A 300×320 creative served in a standard 300×250 placement, only slightly taller, with a parallax scroll effect as the reader moves down the page.
02No interstitials, no layout shift, no impact on page experience.
03Deploys through Yield Cortex. No creative changes required from the buy side.
The A/B test

Same slot, same demand, format on vs off.

With Parallax
$14.67
RPM

77.7% viewable · 26.5s in view · 90% of traffic

Standard 300×250
$8.66
RPM

56.3% viewable · 20.3s in view · 10% of traffic

+70% RPM with the format on

Watch it run

The format in action.

Parallax in action. A 300×320 creative served where a standard 300×250 would go, only slightly taller, lifting viewability with no layout shift and the same ad density.