GA4 - Evidence Kit
A live demo of analytics setup and reporting. This page shows how I implemented Google Tag Manager, Google Analytics 4, and Looker Studio for The Off Label website

Evidence Kit: GA4 + GTM + Looker Demo
Project: The Off Label – analytics & tracking proof-of-work
This demo walks through a full setup of GA4, GTM, and Looker Studio — including event tracking, campaign testing, and dashboard visualization. It’s a simple, end-to-end proof of how data is collected, tracked, and reported in action.
What I set up
- Google Tag Manager (web)
- Container: GTM-P862LZV3
- Tags:
- Google Tag (GA4 config) – loads on all pages
- Events: scroll_depth, outbound_click (room to add more)
- Google Analytics 4
- Property: The Off Label Website
- Measurement ID: G-H0896G8WER
- UTM test link used to attribute campaign traffic:https://www.the-off-label.com/?utm_source=google&utm_medium=search&utm_campaign=ga4_test
How I tested it
- Ran a small Search campaign + manual visits to validate:
- 4 unique devices (desktop + phones on cellular + tablet on cellular)
- Clicked ad / UTM link, landed on site, scrolled, and clicked external links to trigger events
- Verified in GTM Preview/Tag Assistant and GA4 DebugView:
- page_view, session_start, scroll, user_engagement
- UTM params captured in GA4 for session source/medium/campaign
✅ Result: tags firing as designed; events visible in DebugView and standard GA4 reports.
Screenshots (implementation & proof)
GTM container (tags & triggers)

GA4 DebugView (event stream)

GA4 Report: Events

GA4 report: Overview (Active Users)

Looker Studio dashboard (summary view)

What the dashboard shows
- Sessions by channel/source/medium (UTM-attributed)
- Ad campaign clicks (from the Search test)
- Event counts (scrolls, outbound clicks, etc.)
- Active users trend
Notes & next steps (how I’d evolve this for a client)
- Add more intent events (e.g., cta_click, form_start/submit, file_download).
- Wire GA4 events to ad-platform conversions (Google Ads, Meta) via GTM/GA4.
- Add consent mode + region logic if required.
- Build weekly Looker Studio KPI view (channels, creative, CPA/CPL).
- If we scale paid, layer negative keywords, exact match sets, and sitelinks.
Links
- The Off Label site (UTM test): https://www.the-off-label.com/?utm_source=google&utm_medium=search&utm_campaign=ga4_test
- Live Looker Studio dashboard: https://lookerstudio.google.com/reporting/da9d8fc3-b72f-4ffa-ab0d-7cb945395eaa/page/kIV1C?s=tcPj5-Bzclo
