A sitemap informs search engines that individual pages on your site are new or updated and are available for crawling. The sitemap protocol consists of an XML file that includes your website URLs and three other optional pieces of information for each page:
Sitemaps help ensure all new and difficult-to-find pages are indexed quickly and completely, and are particularly useful for websites that are difficult for search engines to crawl and index effectively. Your website benefits from applying a sitemap if it:
NOTE: Using a sitemap does not ensure that search engines will pick up every page of your site, but it does provide hints for search engines to more intelligently crawl your site.
Using the Sitemap Manager in the Hosting Control Panel, you can easily create a sitemap for your primary domain, subdomains, or aliased domains to automatically point search engines directly at domains in your Shared Hosting account. For more information, see Working with Sitemaps in the Hosting Control Panel.
For additional information on sitemaps, visit sitemaps.org.