how to get the status of other urls in ajax

1$('#main-menu a').on('click', function(event) {
2  event.preventDefault();
3
4  $.ajax(this.href, {
5    success: function(data) {
6      $('#main').html($(data).find('#main *'));
7      $('#notification-bar').text('The page has been successfully loaded');
8},
9    error: function() {
10      $('#notification-bar').text('An error occurred');
11    }
12  });
13});
14