Do companies that publish recruitment information on recruitment websites need certification? I feel that many of them are unreliable, and so is Zhilian.

Information can be sent, but B2B platforms such as Alibaba TrustPass and HC can't be opened, and they can only be registered as members through third-party authentication. It must be completed with the company's business license and tax certificate before it can pass the third-party certification. That's better than sending messages by ordinary members. If there is no company registration, you can also send messages on Alibaba, HC, 58 Tongcheng and Baidu Post Bar. Usually send messages to improve the quality, and Baidu will also search for your information in 7 to 15 days.