Freelance data analyst for SaaS and ecommerce teams. I get your tracking, data and measurement right, so the answers your team gets from its data hold up.https://www.henningmerkel.de/https://www.henningmerkel.de/blog/test-your-tracking/https://www.henningmerkel.de/blog/test-your-tracking/Tracking breaks because it's handled like documentation. How a tracking contract, browser tests in CI and warehouse checks catch issues before the data is lost.Fri, 23 Oct 2026 00:00:00 GMT