Sitemap Is One Of The most important part of seo friendly Website.
Sitemaps, as the name implies, are just a map of your site - i.e. on one single page you show the structure of your site, its sections, the links between them, etc. Sitemaps make navigating your site easier and having an updated sitemap on your site is good both for your users and for search engines.
Sitemap get fast indexing of your site.and create seo friendly website.
I Hope This Information Helpful For You All.