I want Domain Name Finder web Service for ASp.net

Following is a simple console program which checks whether if the domain name exists or not.

You can convert it into a webservice if you wish to.

using System;
using System.Linq;
using System.Net;
using System.Net.Sockets;

namespace DemoDNS
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Please enter a domain for lookup.");
            var domainName = Console.ReadLine();
            try
            {
                var ipAddress = Dns.GetHostEntry(domainName);
                if (ipAddress.AddressList.Count() > 0)
                {
                    Console.WriteLine("The domain already exists!");
                }
            }
            catch (SocketException e)
            {
                Console.WriteLine(e.Message);
            }
        }
    }
}