Analytics on Pierre-Henry Soria – CTO Insights, Software Architecture & Product Leadershiphttps://blog.pierrehenry.be/tags/analytics/Recent content in Analytics on Pierre-Henry Soria – CTO Insights, Software Architecture & Product LeadershipHugoen-USCopyright © 2026, Pierre-Henry Soria.Tue, 17 Feb 2015 08:28:00 +0100How I Design an A/B Test That Can Be Trustedhttps://blog.pierrehenry.be/blog/how-i-design-an-ab-test-that-can-be-trusted/Tue, 17 Feb 2015 08:28:00 +0100https://blog.pierrehenry.be/blog/how-i-design-an-ab-test-that-can-be-trusted/Showing a different page on each day is not a reliable A/B test. Cohorts, metrics, and stopping rules need to exist before launch.