Then the keywords to be optimized are determined according to the positioning.
Then according to the keywords, modify the html attribute of your website and optimize the whole website. The most important thing is the home page, which is actually the second-level column and the third-level column, all the way to the article page.
Then do the internal links of the website.
Then there are external links, which are relatively simple and have no technical content. Just find a place to post it.