Find Web Site Visitor IP Address

Default.aspx:

Insert One Label in Form.

Default.aspx.cs;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication4
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string VistorIpAddress = Request.UserHostAddress.ToString();
           // both line of code functionality are same.
            string VisitorIpAddress = Request.ServerVariables["REMOTE_ADDR"];
            Label1.Text = VistorIpAddress + " " + VisitorIpAddress;

        }
    }
}