Upon inquiry, Tianjin Tantu Information Technology Co., Ltd. has a registered trademark, is certified by the industrial and commercial department, has a business license, and is supervised by the industrial and commercial administrative department. It is a relatively reliable enterprise. When registering, the platform recruitment company needs to submit the registered trademark, industrial and commercial department certification and business license to Tianjin Tantu Information Technology Co., Ltd. to ensure the regularity and authenticity of the works, which is more reliable.