Conversions API (CAPI)
Conversions API (CAPI) explained — server-side event tracking that's now table stakes in 2026 as cookies and pixels degrade.
Updated July 2026.
A server-to-server method of sending conversion events directly to ad platforms, bypassing the browser. It restores signal lost to cookie restrictions, ad blockers and iOS privacy changes.
Benchmark range
Now considered essential, not optional, on Meta, Google and LinkedIn. Strong CAPI implementations measurably improve match rates and bidding accuracy.
Why it matters
Browser-based pixels miss a large and growing share of conversions. CAPI recovers that signal, improving attribution and giving automated bidding better data to optimize on.
2026 update
Verified current as of July 2026 — no platform-side changes to CAPI itself this year. It remains the backbone of measurement as third-party cookies keep eroding (even after Google abandoned forced deprecation). Dreamdata reports a LinkedIn CAPI integration cut CPA ~20% and lifted attributed revenue ~31%. Pair CAPI with strong Event Match Quality for best results.
Where it applies
- Meta Ads