It is important for crawlers to be able to crawl your site quicker and with more accurate.
You can create a controller, say siteMapController and in Index add the following
public ActionResult Index() { var xmlString ="<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd\">"; xmlString +="<url>"+"<loc>Your site</loc>"+"<changefreq>weekly</changefreq>"+"<priority>0.6</priority>"+"</url>"+"<url>"+"<loc>Static Link of you site</loc>"+ //you can add as many you want"<changefreq>weekly</changefreq>"+"<priority>0.6</priority>"+"</url>"+"<url>"; //Dynamic links xmlString += "<url>"+"<loc>Link of new item"</loc>"+"<lastmod>"+ DateTime.Now.ToString("yyyy-MM-dd") +"</lastmod>"+"<changefreq>daily</changefreq>"+"<priority>0.8</priority>"+"</url>"; } xmlString += "</urlset>"; ViewData["siteMap"] = xmlString; return View(); }save the xml on your server and post the sitemap via this link
https://www.google.com/webmasters/tools/home?hl=en
hope that helps