The first thing to consider is the merchant's professionalism, service quality and product quality, as well as the timeliness and reliability of the delivery service. At the same time, you should also consider the merchant's after-sales service, whether the price of the goods is reasonable, whether it supports cash on delivery, etc. In addition, you should also pay attention to the reputation and user experience of the first site, so as to choose the most suitable Shopee first site.