Global.asax file can be used to track the number of page requests made for any page. : Global.asax « ASP.Net Instroduction « ASP.NET Tutorial

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2. ASP.Net Instroduction
3. Global.asax

File: Global.asax

<%@ Application Language="C#" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<%@ Import Namespace="System.Web.Configuration" %>
<script runat="server">

    private string _conString;
    private SqlConnection _con;
    private SqlCommand _cmdSelect;
    private SqlCommand _cmdInsert;

    public override void Init()
    {
        _conString = WebConfigurationManager.ConnectionStrings["Log"]. ConnectionString;
        _con = new SqlConnection(_conString);

        _cmdSelect = new SqlCommand("SELECT COUNT(*) FROM Log WHERE Path=@Path", _con);
        _cmdSelect.Parameters.Add("@Path", SqlDbType.NVarChar, 500);

        _cmdInsert = new SqlCommand("INSERT Log (Path) VALUES (@Path)", _con);
        _cmdInsert.Parameters.Add("@Path", SqlDbType.NVarChar, 500);
    }

    public int NumberOfRequests
    {
        get
        {           
           int result = 0;
           _cmdSelect.Parameters["@Path"].Value = Request. AppRelativeCurrentExecutionFilePath;
           try
           {
               _con.Open();
               result = (int)_cmdSelect.ExecuteScalar();
           }
           finally
           {
               _con.Close();
           }
           return result;
        }
    }

    void Application_BeginRequest(object sender, EventArgs e)
    {
        _cmdInsert.Parameters["@Path"].Value = Request. AppRelativeCurrentExecutionFilePath;
        try
        {
            _con.Open();
            _cmdInsert.ExecuteNonQuery();
        }
        finally
        {
            _con.Close();
        }
    }
</script>