I will take some search engine marketing strategies that we often use to do an analysis step by step. Suppose you are doing a certain product, have you ever thought of such a promotion strategy: let all customers or potential customers see your information when they search for related information on the search engine. How is this promotion status achieved? For example, if you are an infertility hospital, you will not buy the keyword "infertility" bidding ranking on Baidu, the cost of which is unimaginable. Usually, we would choose search engine optimization promotion. This kind of promotion will not target only the keyword "infertility". Although the traffic of this word is obvious, the competition level is also quite high. What we usually do is: user behavior analysis - > keyword formulation - > long-tail keyword optimization ranking. For example, "Beijing Infertility Hospital", "too long foreskin", "the reason for infertility", "how to treat infertility", and many other low-competition keywords.