JD.com, also known as Jingdong, is a leading Chinese e-commerce company that has evolved into a supply chain-based technology and service provider. It's known for its vast retail infrastructure, including its own logistics network, and for offering a wide range of products directly to consumers. JD.com also provides online marketplace services for third-party sellers, marketing services, and omni-channel solutions. The company's business spans retail, technology, logistics, healthcare, and more.