XML Sitemaps help search engines find, crawl, and index the pages on your website. There's no penalty for not having one, but creating an XML Sitemap is relatively simple and can be very beneficial for getting more of your website's pages ranked, so we highly recommend them. For small, relatively simple websites—those with only a few hundred pages—a single XML Sitemap is fine. However, sometimes a single XML Sitemap is not sufficient for large or complex websites