IIS Helper, binding new domain using c#

public class IISHelper
    {

        public static string SiteName
        {
            get
            {
                return Config.GetSetting("SiteName");
            }
        }

        public static void AddDomianTmSuite(string portalAlias)
        {
            using (ServerManager iis = new ServerManager())
            {
                Site site = iis.Sites[SiteName];
                if (site != null)
                {
                    Binding binding = GetBinding(site.Bindings, "*:80:" + portalAlias);
                    if (binding == null)
                    {
                        AddBinding(site.Bindings, "*:80:" + portalAlias);
                    }
                    iis.CommitChanges();
                }
            }
        }

        public static void DeleteDomainTmSuite(string portalAlias)
        {
            using (ServerManager iis = new ServerManager())
            {
                Site site = iis.Sites[SiteName];
                if (site != null)
                {
                    Binding binding = GetBinding(site.Bindings, "*:80:" + portalAlias);
                    if (binding != null)
                    {
                        site.Bindings.Remove(binding);
                    }
                    iis.CommitChanges();
                }
                
            }
        }

        /// <summary>
        /// Get Bingding
        /// </summary>
        /// <param name="bindings">collection of currnet site bindings</param>
        /// <param name="BindingInformation">like *:80:asp.google.tst</param>
        /// <returns>null or binding</returns>
        public static Binding GetBinding(BindingCollection bindings, string BindingInformation)
        {
            foreach (Binding binding in bindings)
            {
                if (binding.BindingInformation.ToLower() == BindingInformation.ToLower())
                {
                    return binding;
                }
            }

            return null;
        }

        /// <summary>
        /// Add Binding
        /// </summary>
        /// <param name="bindings">collection of currnet site bindings</param>
        /// <param name="BindingInformation">like *:80:asp.google.tst</param>
        public static void AddBinding(BindingCollection bindings, string BindingInformation)
        {
            Binding binding2 = bindings.CreateElement();
            binding2.BindingInformation = BindingInformation;
            binding2.Protocol = @"http";
            bindings.Add(binding2);
        }
    }