Health certificate refers to the proof of preventive health examination, which proves that the examinee has the health quality to engage in the prescribed business. When you apply for a health permit, you need to provide employee health certificates, which are networked and can be found on relevant websites or apps. This can ensure the authenticity and accuracy of the employee health certificate provided, and avoid false documents or concealing the illness. At the same time, the networked health certificate can also facilitate the management and supervision of relevant departments to ensure food safety and public health.