The small icon next to the owner's user name in the store shows the "authentication situation" of the store, such as Alipay's real-name authentication, consumer protection plan, brand merchant authentication merchants and so on.
As a non-seller, all we can see are these icons. If you mean to see the owner's private registration information and account number, it should be impossible. After all, this information is also a promise that Taobao will not publish.
As for some sellers, it is one of the criteria to judge whether they will voluntarily provide information such as their trusted merchant number on the front page of the store.
After the buyer and the seller reach a deal, they can see the seller's real name, contact information and other information on the corresponding page of the baby they bought. As for how to judge whether the seller is operating in good faith, it is suggested that the landlord look at the seller's credit evaluation, and the evaluation after personal experience is more credible.