Pixel & CAPI Auditor

{
  "data": [{
    "event_name": "Purchase",
    "event_time": 1706745600,
    "event_id": "evt_unique_123",
    "event_source_url": "https://example.com/thank-you",
    "action_source": "website",
    "user_data": {
      "em": ["a1b2c3...sha256..."],
      "ph": ["d4e5f6...sha256..."],
      "fn": ["ab12cd...sha256..."],
      "ln": ["ef34gh...sha256..."],
      "external_id": ["user_789_hashed"],
      "fbc": "fb.1.1706745600.ABCdef",
      "fbp": "fb.1.1706745600.1234567890",
      "client_ip_address": "203.0.113.1",
      "client_user_agent": "Mozilla/5.0..."
    },
    "custom_data": {
      "value": 99.99,
      "currency": "USD",
      "content_ids": ["SKU-123"],
      "content_type": "product",
      "num_items": 1
    }
  }]
}

curl -X POST "https://graph.facebook.com/v21.0/PIXEL_ID/events?access_token=TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "data": [{
      "event_name": "PageView",
      "event_time": '$(($(date +%s)))',
      "event_id": "test_'$(uuidgen)'",
      "action_source": "website",
      "event_source_url": "https://example.com",
      "user_data": {
        "client_ip_address": "1.2.3.4",
        "client_user_agent": "test"
      }
    }],
    "test_event_code": "TEST12345"
  }'

curl -s "https://example.com" | grep -oP 'fbq\([^)]+\)' | head -20

curl -s "https://example.com" | grep -oP 'meta-tag.*facebook-domain-verification'

gtag('set', 'user_data', {
  "email": "user@example.com",  // Hashed automatically
  "phone_number": "+11234567890",
  "address": {
    "first_name": "John",
    "last_name": "Doe",
    "street": "123 Main St",
    "city": "New York",
    "region": "NY",
    "postal_code": "10001",
    "country": "US"
  }
});

curl -X POST "https://googleads.googleapis.com/v17/customers/CUSTOMER_ID:uploadConversionAdjustments" \
  -H "Authorization: Bearer ACCESS_TOKEN" \
  -H "developer-token: DEV_TOKEN" \
  -d '{
    "conversionAdjustments": [{
      "adjustmentType": "ENHANCEMENT",
      "conversionAction": "customers/CUSTOMER_ID/conversionActions/ACTION_ID",
      "adjustmentDateTime": "2026-01-15 12:00:00-05:00",
      "orderId": "ORDER-123",
      "userIdentifiers": [{
        "hashedEmail": "a1b2c3...sha256..."
      }]
    }]
  }'

// Before gtag/GTM loads:
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('consent', 'default', {
  'ad_storage': 'denied',
  'ad_user_data': 'denied',
  'ad_personalization': 'denied',
  'analytics_storage': 'denied',
  'wait_for_update': 500
});

// After user grants consent:
gtag('consent', 'update', {
  'ad_storage': 'granted',
  'ad_user_data': 'granted',
  'ad_personalization': 'granted',
  'analytics_storage': 'granted'
});

{
  "pixel_code": "PIXEL_CODE",
  "event": "CompletePayment",
  "event_id": "evt_unique_456",
  "timestamp": "2026-01-15T12:00:00-05:00",
  "context": {
    "ad": {
      "callback": "ttclid_value_from_url"
    },
    "page": {
      "url": "https://example.com/thank-you",
      "referrer": "https://example.com/checkout"
    },
    "user": {
      "external_id": "user_789_sha256",
      "email": "sha256_hashed_email",
      "phone_number": "sha256_hashed_phone"
    },
    "user_agent": "Mozilla/5.0...",
    "ip": "203.0.113.1"
  },
  "properties": {
    "value": 99.99,
    "currency": "USD",
    "contents": [{"content_id": "SKU-123", "quantity": 1, "price": 99.99}],
    "content_type": "product"
  }
}

curl -X POST "https://business-api.tiktok.com/open_api/v1.3/event/track/" \
  -H "Content-Type: application/json" \
  -H "Access-Token: SERVER_ACCESS_TOKEN" \
  -d '{ ... payload ... }'

{
  "conversion": "urn:lla:llaPartnerConversion:CONVERSION_RULE_ID",
  "conversionHappenedAt": 1706745600000,
  "conversionValue": {
    "currencyCode": "USD",
    "amount": "99.99"
  },
  "eventId": "evt_unique_789",
  "user": {
    "userIds": [
      {
        "idType": "SHA256_EMAIL",
        "idValue": "sha256_hashed_email"
      },
      {
        "idType": "LINKEDIN_FIRST_PARTY_ADS_TRACKING_UUID",
        "idValue": "li_fat_id_value"
      }
    ],
    "userInfo": {
      "firstName": "John",
      "lastName": "Doe",
      "companyName": "Acme Inc",
      "title": "VP Marketing",
      "countryCode": "US"
    }
  }
}

curl -X POST "https://api.linkedin.com/rest/conversionEvents" \
  -H "Authorization: Bearer ACCESS_TOKEN" \
  -H "LinkedIn-Version: 202510" \
  -H "X-Restli-Protocol-Version: 2.0.0" \
  -H "Content-Type: application/json" \
  -d '{"elements": [{ ... payload ... }]}'

{
  "events": [{
    "event_at": "2026-01-15T12:00:00Z",
    "event_type": {
      "tracking_type": "Purchase"
    },
    "click_id": "rdt_cid_value",
    "event_metadata": {
      "item_count": 1,
      "value_decimal": 99.99,
      "currency": "USD",
      "conversion_id": "evt_unique_012"
    },
    "user": {
      "email": "sha256_hashed_email",
      "external_id": "user_789",
      "uuid": "_rdt_uuid_value",
      "ip_address": "203.0.113.1",
      "user_agent": "Mozilla/5.0..."
    }
  }]
}

curl -X POST "https://ads-api.reddit.com/api/v2.0/conversions/events/PIXEL_ID" \
  -H "Authorization: Bearer CAPI_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ ... payload ... }'

{
  "offlineConversions": [{
    "conversionName": "Purchase",
    "conversionTime": "2026-01-15T12:00:00.000Z",
    "conversionValue": 99.99,
    "conversionCurrencyCode": "USD",
    "microsoftClickId": "msclkid_value",
    "hashedEmailAddress": "sha256_hashed_email",
    "hashedPhoneNumber": "sha256_hashed_phone"
  }]
}

On every request:
  1. Check URL params for: fbclid, gclid, ttclid, li_fat_id, rdt_cid, msclkid, twclid
  2. Store each found ID in a first-party cookie
  3. On conversion event, read all cookies
  4. Send to each platform's CAPI with matching click ID
  5. Use single event_id/conversion_id for deduplication

Event: Purchase ($99.99)
event_id: "evt_txn_abc123"

→ Meta CAPI: event_id="evt_txn_abc123", fbc="{_fbc}", fbp="{_fbp}"
→ Google Enhanced Conversions: order_id="ORDER-123", gclid="{gclid}"
→ TikTok Events API: event_id="evt_txn_abc123", ttclid="{ttclid}"
→ LinkedIn CAPI: eventId="evt_txn_abc123", li_fat_id="{li_fat_id}"
→ Reddit CAPI: conversion_id="evt_txn_abc123", click_id="{rdt_cid}"
→ Microsoft Offline: microsoftClickId="{msclkid}"