An XML Sitemap is a standardized file that you can use to notify search engines about the pages on your site. These files are typically generated automatically through our webmaster tools and served via robots.txt or manually.
XML sitemaps are a great way to help Google crawl your site, discover new content, and correctly resolve admin URLs. If you’re a developer, take a look at our XML Sitemaps guide for more information about how to submit your sitemap to Google.
Few XML sitemaps tips for developers to achieve better SEO results: