Why server-side tracking?
Traditional Meta Pixel loads in the browser. That worked great in 2018 — and barely works at all in 2026. Here's what changed, and why shifting events to your server fixes it.
The three things eating your data
1. Ad blockers
uBlock Origin, AdBlock, Brave's built-in shield — they all ship blocklists that
match connect.facebook.net, google-analytics.com, and
hundreds of pixel hostnames. When a blocker fires, your pixel never even loads.
A real share of your visitors — more on desktop than on mobile — run an ad blocker, and most ad blockers stop the Meta Pixel from loading at all.
2. iOS 14 App Tracking Transparency
Since iOS 14.5, apps must ask permission to track. Most users say no. Meta's browser-based pixel respects this by downgrading to "Limited EMQ" events — incomplete, delayed, and missing the identifiers Meta needs for attribution.
3. Safari ITP (Intelligent Tracking Prevention)
Safari deletes third-party cookies after 7 days. Your _fbp cookie —
the thing that ties a user's click to a later purchase — evaporates before
most conversion windows close.
The cost, in numbers
| Source | Reported conversions | Actual conversions lost |
|---|---|---|
| Ad blockers | — | 20–40% |
| iOS 14 ATT | ~60% quality | ~15% absolute |
| Safari ITP | Truncated attribution | 5–10% |
| Combined average | 25–35% |
How server-side fixes all three
- Events leave your server (or our edge on your subdomain), not the user's browser — no blocklist matches.
- Your server sends the event directly to Meta's Conversions API — iOS 14 doesn't apply.
Ready to see it live?
Head to Quick start — your first recovered event is about 5 minutes away.