Joon Han | Digital Diagnostics
Marketing Analytics
Treated with Clinical Rigor
How clinical training shapes the way
I approach growth
About Me
I apply a clinical analytical framework to growth and performance challenges.
I approach marketing the way I was trained to approach diagnostics.
Identify constraints. Build structured measurement. Test assumptions. Refine outcomes.
My focus is not activity, but clarity. Not noise, but signal.
The sections that follow show how this mindset translates into practice
Recent Work
Case Study
Turning Campaign Metrics Into Budget Decisions
Which campaigns should receive more budget, less budget, or further review based on spend efficiency and conversion quality?
Increase Budget campaigns generated the strongest profit and ROAS signal
Reduce Budget campaigns showed clear budget risk with weak return efficiency
Platform analysis showed Facebook and TikTok as stronger scaling signals while LinkedIn carried the highest risk
Python | Excel / Campaign Dataset | Budget Reallocation & Performance Review | Marketing Analytics
Published · 2 May 2026
Blog
A Headline Tells Us What Happened, Not What It Means
How can analytical thinking separate an event from the meaning people attach to it?
A headline describes the first visible event, but not its consequence Fast-moving conflict creates pressure to interpret before understanding
Good analysis asks what changed, what remains uncertain, and what assumptions are being made
Analytical Thinking | Current Iran Situation | Interpretation & Risk Analysis | Geopolitical Reflection
Published · 3 May 2026
Portfolio Analytics
The Biggest Traffic Source Was Not the Strongest Signal
How can portfolio traffic source analysis separate traffic volume from engagement quality?
Direct was the largest traffic source with 80 sessions.
Referral produced stronger engagement with 29 engaged sessions.
Referral led engagement rate with 76.32%,compared with 17.24% for Direct.
GA4 | Portfolio Analytics | Traffic Source Analysis | Engagement Quality
Published · 27 April 2026
This is not a traditional portfolio
It is a record of applied thinking.
It documents how I structure problems, validate assumptions, and turn analysis into action.
Navigate by relevance.
If time is limited, begin with the case studies.