There are many benefits to using XML sitemaps. XML sitemaps tell Google to crawl and index your website, what to crawl on your website, and what kind of information is on your website. They also tell Google when your content was last updated, which is useful for your SEO. It tells Google how important your content is. An XML sitemap can help a website with weak internal linking to overcome that problem. It also helps extremely large websites get better, more organized indexation. XML sitemaps show Google the pages of your website that might overwise get lost without internal links. This also helps Google rank your pages for the most relevant search queries.