The network is not good. According to the query data, the slow payment of pdd confidential payment is a bad network. Just refresh it. Secret-free and visa-free payment means that small payments can be completed without passwords and consumer signatures. Internationally, small secret-free visa-free payment is a mature payment method, which is also widely used in the domestic mobile payment field. Alipay, WeChat and other payment tools all have this function, which is the basic function of bank card opening by default.