Searching is the most commonly used network behavior method except email. Searching for information through search engines is the primary means for Internet users to search for information and resources. Search engine marketing has become the most important part of network marketing. How to enable your website to be indexed by the main search engine and then ranked by a higher rank has become a topic for website builders.
In foreign countries, SEO was launched earlier. SEO technicians are called Search Engine Optimizers (SEOs) by Google. Because Google is currently the world's largest search engine provider, Google has become a major research object for SEOs around the world. Therefore, Google's legal website has a special page to introduce SEO, and show Google's attitude towards SEO.