We are about to switch to Firebase notifiaction API from Parse.com (that are retiring their service in jan 2017) to send push notification to our android and iOS Apps.
firebase allows you to view sent/delivered/opened statuses by default from their website http://console.firebase.google.com at the notification section
but I am not sure about the parse.com implementations
also if you are a new comer to firebase let it collect user data for about 24 hours after successfully migrating to firebase I found that in the first day the notifications weren't really reporting immediately