<b>Conversion shaving leaves a fingerprint: a flat-line in your last-event funnel</b>

<b>Conversion shaving leaves a fingerprint: a flat-line in your last-event funnel</b>
Shaving = a network silently dropping a share of your valid conversions.

— Healthy funnel: last-step drop tracks time-of-day curve, CV 0.4 ▏▏▏▏
— Shaved funnel: last-step drop is suspiciously constant, CV 0.08 ▏
— Typical undisclosed scrub band observed: 5-12% ▏▏▏▏▏▏

Legit declines vary with traffic mix and hour; an unnaturally stable rejection percentage across very different days is the tell. Confirm with a same-pixel split test across two networks. n=380 funnels audited.

Read: monitor the variance of your reject rate, not just its level.