If it is not Jingdong self-supporting, you need to ask the shopkeeper whether there is an invoice, and vice versa, Taobao is the same, you can ask for invoices, and invoices can be verified authenticity.
Taobao has the lowest rate of authenticity, only 37.25%. And the three well-known B2C platform, Jingdong Mall, Tmall, 1 store authenticity rate are higher than 65.32 percent.