A sitemap is a file that lists the structure and pages of a website to help search engines crawl and index the site more effectively. There are two main types of sitemaps: HTML sitemaps and XML sitemaps. HTML sitemaps are typically designed for human users and are displayed as a list of links or a visual diagram of the site’s structure. XML sitemaps are designed for search engines and provide a detailed list of all the pages on the site, along with information about their importance, frequency of updates, and other metadata.

Sitemaps are submitted to search engines to help them discover and understand the structure of a website, which can improve the site’s visibility and search engine rankings by ensuring that all the content on a site is properly indexed and available to users.