Why pixel-only setups quietly under-report performance
A pixel installed years ago and never revisited is one of the most common gaps we find auditing Meta accounts — browser-side tracking alone has degraded steadily as ad blockers, iOS privacy restrictions and browser-level tracking prevention have expanded, meaning a pixel-only setup can be silently missing a meaningful share of real conversions. The Conversions API (CAPI) sends the same event data server-side, which is far more resilient to client-side blocking, but only delivers its full value when paired with correct event deduplication (so the same purchase isn't counted twice) and strong event match quality (so Meta can actually attribute the event to a real person).
This grader scores all five areas together — pixel install completeness, standard event coverage, CAPI/server-side implementation, event match quality inputs, and deduplication/consent handling — because a strong score in one area doesn't compensate for a gap in another; a perfectly installed pixel with no CAPI still misses the same blocked-browser traffic, and CAPI with no deduplication just creates inflated, unreliable numbers instead of better ones.
Fixing what this grader surfaces is core to Meta Ads account management. For the tracking side of a related channel, see our WhatsApp click tracking guide and offline conversion imports guide.