Pinduo In the ranking of the second-class e-commerce platforms in China in 2023, Pinduoduo ranked first, with the best reputation and brand among the second-class e-commerce. Second-class e-commerce: the broad definition refers to the form of single product promotion on cash on delivery, such as Guangdiantong. The process is to promote the single product page in the form of opening an account, through the process of putting goods on the shelves, actively promoting, placing orders by customers and signing for refund.