Search engine optimization (seo): refers to search patterns targeting the search engine, allowing the site to take the lead in the industry and gain more traffic. Sem: sem is an abbreviation for search engine marketing in english. This is the process of using user access to information in a way that allows users to communicate marketing information to target audiences to the extent possible. Simply speaking, the key words that are appropriate for their own development are selected and promoted after learning how to locate the various websites. The main difference between seo and sem is as follows: 1 definition and purpose: seo (survey engine optimization) aims to improve the site's natural ranking in the search engine by optimizing its content, structure and keywords, in order to obtain more free traffic. Sem (search engine marketing), for its part, includes seo and fee-for-search advertising, displaying advertisements on the search results page by purchasing keywords, quick access to traffic and potential customers. 2 how this is achieved: it is a natural process for seo to achieve higher rankings by continuously optimizing external factors within the website over the long term. Sem, for its part, is rapidly increasing website exposure and traffic through fee advertising, such as google adwords, bing ads, etc. 3 cost and time: seo costs are low, but the cycle is long and sustained effort is required to see tangible results. Sem is costly, but it works quickly and can rapidly increase website traffic. 4 user behaviour: as users prefer to click on natural ranking results rather than advertising, the quality of flows generated by seo is higher. Sem is able to attract target users through accurate advertising。
