Including an X Feed on a website can potentially improve its search engine optimization (SEO) in a few ways. First, the regular updates and fresh content provided by an X Feed can help to keep the website active and engaging, which can signal to search engines that the website is worth ranking highly. Second, the tweets themselves may include keywords and phrases that are relevant to the website's content, which can help to improve the website's ranking for those terms. Finally, if the X Feed is set up to automatically include links to the website's content, this can increase the number of inbound links to the website, which can also improve its SEO. However, it's important to note that an X Feed alone is not a guaranteed way to improve SEO, and it should be part of a broader SEO strategy.