Blog: Monitor your Sitecore server's health - 1.cs

// Optional: uncomment whichever ways you feel are appropriate for security
// Ensure that your monitoring tool matches these
if (!(true
    //&& Request.IsSecureConnection // Checks if using HTTPS
    //&& Request.QueryString["authkey"] == @"secret"
    && Request.UserHostAddress == "127.0.0.1"
    //&& Sitecore.Context.IsLoggedIn
    //&& Sitecore.Context.IsAdministrator
    //&& Sitecore.Context.User.IsInRole(@"sitecore\Developer")
    ))
{
    Response.StatusCode = (int)System.Net.HttpStatusCode.Forbidden;
    Response.Write("You are not authorized to view this page");
    Response.TrySkipIisCustomErrors = true;
    Response.End();
    return;
}