Tracking Architecture, 4-Domain Enterprise
domain-1.de
sub.domain.de
domain-3.com
int.domain.eu
GOOGLE TAG MANAGER, CENTRALIZED CONTAINER
✓ CONSENT MODE V2✓ GDPR✓ SERVER-SIDE
GOOGLE ANALYTICS 4, CROSS-DOMAIN + SUBDOMAIN TRACKING
Google Ads
Meta Pixel
LinkedIn
Looker Studio
Analytics & TrackingQ4 2025–Q1 2026
eMobility Enterprise Tracking
End-to-end tracking and performance marketing infrastructure for a multi-billion EUR eMobility manufacturer, zero visibility to full-funnel attribution across 4 domains and 3 ad platforms.

Key Data

  • Client Confidential, eMobility Sector
  • Industry Automotive / eMobility / B2B Manufacturing
  • Project Type Analytics Infrastructure & Performance Marketing
  • Timeline 12 Weeks
  • Date Q4 2025–Q1 2026
  • Outcome GA4 · GTM · Consent Mode v2 · Cross-Domain Tracking · Meta / LinkedIn / Google Ads · Looker Studio

Understanding the Challenge

A market-leading eMobility manufacturer with multi-billion EUR annual revenue was running digital marketing campaigns with near-zero measurement infrastructure. Their web presence spanned four international domains, yet no unified tracking existed. Marketing investment across Google, Meta, and LinkedIn operated without attribution, every euro spent was effectively blind.

The mandate: design and implement an enterprise-grade analytics and tracking architecture from scratch. Scalable enough to support multi-domain measurement, GDPR-compliant under the latest Consent Mode v2 standards, and robust enough to provide real-time attribution data for performance marketing decisions at scale.

What We Aimed to Achieve

  • Design scalable GTM container architecture with standardised naming conventions across all 4 international domains
  • Deploy GA4 with custom event taxonomy, measurement plan, and full cross-domain and subdomain attribution
  • Replace legacy consent tooling with GDPR-compliant Consent Mode v2 via Cookiebot across all platforms
  • Implement conversion tracking for Google Ads, Meta Pixel, and LinkedIn Insight Tag with remarketing audiences
  • Build real-time KPI dashboards in Looker Studio connected to GA4 for marketing and leadership teams
  • Establish UTM frameworks and campaign naming conventions for cross-channel attribution consistency

Design Process

[001]
Audit & Architecture
Full audit across all 4 domains. Designed scalable GTM container structure, naming conventions, variable taxonomies, and data layer architecture from scratch.
[002]
Consent & Compliance
Replaced legacy CMP. Implemented Cookiebot with GTM Consent Initialization and full Consent Mode v2 workflows validated across GA4, Meta, and LinkedIn.
[003]
GA4 & Event Tracking
Deployed GA4 Measurement IDs, built 20+ custom event taxonomy, cross-domain linking, subdomain configuration, and server-side tracking across all domains.
[004]
Campaign Infrastructure
Implemented Meta Pixel, LinkedIn Insight Tag, and Google Ads conversion tracking. Built UTM framework, remarketing audiences, and campaign naming conventions.
[005]
Dashboards & QA
Built Looker Studio KPI dashboards on GA4 data. Full QA via GTM Preview and GA4 DebugView before production deployment across all domains.
4
Domains Tracked
20+
Custom Events
3
Ad Platforms
79%
Consent Rate

Measurement Infrastructure

Full-Funnel Tracking Coverage
User journey visibility across all 4 domains post-implementation
Sessions Captured, Base Tracking280K / mo
100%
Cross-Domain Journeys Attributed190K / mo
68%
Mid-Funnel Interactions Tracked87K / mo
31%
Lead Events Captured11.8K / mo
Event Tracking Implementation
Coverage rate by event category across all domains
Pageview & Session Tracking100%
Cross-Domain Attribution100%
CTA Click Events97%
Form Submission Tracking100%
Lead Completion Events100%
PDF Download Tracking91%
Scroll Depth Milestones85%
Video Engagement Events76%
Ad Platform Distribution
Active campaign tracking coverage across platforms
4PLATFORMS
Google Search32%
YouTube / Display21%
LinkedIn28%
Meta19%
Consent Mode v2 Impact
Measurement quality before and after CMP migration
Before, Legacy CMP
Measured Sessions
41%
Measurement Quality Score
28%
After, Consent Mode v2
Measured Sessions
79%
Measurement Quality Score
94%

Outcome

The project delivered a complete, enterprise-grade measurement infrastructure where none previously existed. For the first time, the client's marketing team achieved full visibility into the user journey, from first impression to lead submission, across all four domains and three advertising platforms. Every conversion attributed. Every campaign measurable.

Consent Mode v2 adoption raised effective measurement quality from 41% to 79% of sessions, with modelled conversions filling the gap where consent was withheld. Active performance marketing campaigns now run across Google Search, YouTube, LinkedIn, and Meta with real-time attribution, ROAS measurement, and audience-based retargeting fully operational.

Ready to Measure
What Matters?

Enterprise analytics infrastructure that turns data into decisions, built to perform at any scale.

[Start a Project →]
Analytics & Tracking
Performance Marketing
Consent Mode v2
Cross-Domain GA4
UnityWorld LLC
Analytics & Tracking
Performance Marketing
Consent Mode v2
Cross-Domain GA4
UnityWorld LLC