A sitemap is a list of the pages on a website, typically organized in a hierarchical structure. It is used to help users and search engines navigate and find the different pages on the site. A sitemap can be in the form of a page on the website that lists the different pages and their relationships to each other, or it can be in the form of an XML file that is submitted to search engines to help them index the site. XML sitemaps are commonly used by large websites to help search engines discover and crawl the pages on the site, and to provide information about the content on those pages. This can help improve the visibility of the website in search engine results, and can make it easier for users to find the content they are looking for.