<b>Chasing high RPM can wreck your fill rate</b>
Ok so people set aggressive floor prices in mediation to push RPM up. Looks great per-impression — but unsold impressions get no ad at all, and your overall earnings drop.
Pulled my floors down on lower-tier geos.
— RPM number went down (felt bad)
— total revenue went UP because fill rate jumped from 89% to 99%
Don't optimize the vanity metric. Total dollars is the only score. Steal it.
AdSense Trenches
@AdSenseTrenches
<b>Chasing high RPM can wreck your fill rate</b>
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