greasemonkey_ga_list.js

var googleItems = [];
if(_gaq_account) {
  googleItems.push('Google Analytics: '+_gaq_account);
}
if(typeof ga === 'function') {
  ga(function(){
    var trackers = ga.getAll();
    for (var i=0; i < trackers.length; ++i) {
      var tracker = trackers[i];
      googleItems.push("Analytics Universal: "+tracker.get('trackingId'));
    }
  });
}
if(googleItems.length > 0){
  var googleDiv = document.createElement('div');
  googleDiv.style = "z-index:999; position: absolute; top: 5px; left: 5px;";
  googleDiv.innerHTML = googleItems.join('<br>\n');
  document.body.insertBefore(googleDiv, document.body.lastChild);
}