A/B testing e-commerce, also known as split testing, is a method of comparing two versions of a website or app to determine which one performs better in terms of user engagement and conversion rates. This process involves randomly dividing website visitors into two groups and showing each group a different version of the website, then analyzing the data to determine which version is more effective in achieving the desired outcome. A/B testing e-commerce is a crucial tool for businesses looking to optimize their online presence and improve their overall performance.