1 public static string GetSiteRoot() 2  { 3 string port = System.Web.HttpContext.Current.Request.ServerVariables["SERVER_PORT"]; 4 if (port == null || port == "80" || port == "443") 5  { 6 port = ""; 7  } 8 else 9  {10 port = ":" + port;11  }12 string protocol = System.Web.HttpContext.Current.Request.ServerVariables["SERVER_PORT_SECURE"];13 if (protocol == null || protocol == "0")14  {15 protocol = "http://";16  }17 else18  {19 protocol = "https://";20  }21 string sOut = protocol + System.Web.HttpContext.Current.Request.ServerVariables["SERVER_NAME"] + port + System.Web.HttpContext.Current.Request.ApplicationPath;22 if (sOut.EndsWith("/"))23  {24 sOut = sOut.Substring(0, sOut.Length - 1);25  }26 return sOut;27 }