CAPI & Signal Loss Calculator

How Much Conversion Signal Are You Losing to Browser Tracking?

Safari ITP, iOS restrictions, ad blockers and consent choices stop a share of your conversions ever reaching the ad platforms — so their algorithms bid on incomplete data. Enter your numbers to estimate what is hidden, what server-side tracking can recover, and what stays unrecoverable by design.

Your Numbers

Monthly Ad Spend$35,000/mo

Monthly conversions (true count)

$

Current Tracking Setup

Safari / iOS traffic share45%

The privacy-restricted share where browser tracking loses the most.

Consent decline rate12%

Events lost to declined consent — not recoverable by server-side.

Why this raises your CPA

When the platform sees only 46% of conversions, its automated bidding optimises on incomplete data — under-crediting channels that convert on Safari/iOS and over-spending where it can still see. Cleaner signal narrows your effective cost per acquisition without changing budget.

Signal DeficitEstimate

54%

314

$85 → $48

45.5%

34.9%

19.6%

Captured todayRecoverable server-sideNot recoverable (consent)

Server-side tracking (a properly implemented conversions API) recovers most events lost to browser restrictions — but never the ones a visitor declined via consent. The recoverable slice above is realistic; the unrecoverable slice is by design.

What this means

Your ad platforms currently see only about 46 of every 100 conversions, so they are optimising bids on badly incomplete data — which pushes them to over-spend on weak clicks and inflates your effective cost per acquisition. Roughly 314 conversions a month (64% of the gap) are recoverable server-side; the rest are consent-declined and stay unrecoverable by design.

Compounding Growth Insights

Growth & Retrieval Intelligence

We document strict performance blueprints, privacy-centric analytics, and pricing structures directly linked to conversions.Highly recommended read for this page: Signal & Inertia