How Tragly Works

A live explanation of the server-side tracking architecture and event flow.

The Problem with Client-Side Tracking

Traditional analytics rely on JavaScript running in the browser. This creates three compounding problems:

Ad Blockers

25–40% of traffic blocked. Events never reach GA4 or Meta.

ITP / Safari

Apple's Intelligent Tracking Prevention limits cookies to 7 days.

Page Speed

Multiple tracking scripts slow down the page and hurt Core Web Vitals.

The Tragly Solution — Event Flow

With Tragly, one lightweight pixel collects the event, and the Tragly server does the forwarding — out of the browser's reach.

Visitor's Browser

Clicks, scrolls, purchases

→

Tragly Server

First-party, EU-hosted

→

Destinations

GA4 · Meta · TikTok · Webhook

t.js pixel — 1 request only
Bot filter · Enrich · Store
Parallel, with retry

Sample event payload (what Tragly receives from the pixel):

// POST /track/batch — server-side event

{
  "tracking_id": "TRG-0042",
  "client_id": "abc123xyz",
  "events": [{
    "name": "purchase",
    "params": {
      "value": 149.00,
      "currency": "EUR",
      "order_id": "ORD-9871"
    }
  }]
}

// → GA4 Measurement Protocol ✓
// → Meta Conversions API ✓
// → TikTok Events API ✓
// → Stored EU, Frankfurt ✓

What Happens on the Server

1. Receive & Validate

  • ✓ Tracking ID validated
  • ✓ Bot detection (user-agent, IP)
  • ✓ Rate limiting (DDoS protection)
  • ✓ Payload size limit (250 KB)

2. Enrich

  • ✓ Geo-lookup (country, city) from IP
  • ✓ User-agent parsing (device type)
  • ✓ Session attribution (_tragly_cid)
  • ✓ Timestamp normalization (UTC)

3. Store

  • ✓ SQLite database (EU, Frankfurt)
  • ✓ WAL mode for concurrent reads
  • ✓ 90-day auto-deletion (configurable)
  • ✓ Available in dashboard instantly

4. Forward

  • ✓ Parallel dispatch to all enabled forwarders
  • ✓ Automatic retry with exponential backoff
  • ✓ Failed events logged to dead-letter queue
  • ✓ Admin-visible in Dead Letters panel

Ready to see it live?

Tragly is in managed pilot. Request access and we'll onboard your agency personally — tracking live within a day.

Request pilot access → Read setup guide