First of all, it is impossible to accurately deliver advertisements if advertisers personally deliver advertisements. Most advertisers lack relevant experience, but in the end, they invest money but go away. Most of today's headline agents have many years of experience. They can analyze users' consumption, hobbies, etc., and dig out users' interest information and topics of interest, so as to carry out targeted delivery, help advertisers get more accurate crowds, and also help advertisers save advertising costs and avoid advertisers blindly delivering themselves.