Johannes
10+ years exp as dev with focus on React since 2016. Walking pad user for 4+ years. Reviews and health advice on https://office-walker.com
@j_kettmann 1,380 X followers jkettmannprofy.dev First product launched 9y ago
- Total monthly visits
- <5K
- Sep 2026 · Below 5K floor
- Public revenue
- Undisclosed
- No public revenue across products
100% full-depth creator dossier open: complete product portfolio, 12-month combined traffic & MRR curves, shipping cadence, and timeline events.
Products
| Product | Visits · Sep | Actions |
|---|---|---|
| Johannes KettmannHelping React developers taking the leap from hobbyist to professional. Learn skills that matter for the job. | <5K |
Timeline
Launches, marketing, revenue milestones, and pricing/plan/positioning changes across products
Mar 4, 2017 · 9y ago
Johannes Kettmann launchedNew product