Performance insurance services are consumer protection services provided by third party platforms. For example, Taobao offers a real description, goods insurance, an unconditional return x days, real insurance, a false compensation, etc. If the operator does not provide any service, the compensation is executive. McKnight and others care about consumer confidence. They stressed that the reputation of retailers, the website's operating system and quality assurance determine consumer confidence and therefore their purchasing behavior. Juku Jones and others believe that consumer perception of third-party regulators can also affect consumer confidence.