A Casual Discussion on the Impact of CSS Div Web Layout on SEO. SEO refers to search engine optimization, which mainly involves optimizing various aspects of a website, such as its structure, tags, and layout, so that search engines can more easily crawl the content of the site, and allow each webpage of the site to receive higher scores in search engines, thereby achieving better rankings. The DIV CSS web layout has a positive and meaningful impact on SEO. Consider the following aspects: