This document provides an overview and analysis of e-commerce agility across 82 brands. It examines how quickly brands are adapting to changes in the retail landscape based on the type of e-commerce platform they use. Key findings show that while the platform is important, it must be considered together with a brand's existing resources and growth plans. The study defines e-commerce agility and measures it based on dynamic content creation, integration of new technologies, and ease of entering new markets. It finds that cloud-based platforms generally support higher agility, though customized on-premise solutions can also be successful depending on a brand's focus and finances. Financial performance is also correlated with platform choice and agility.