Check on line status of my thing

Hello everybody, is my error or there is non way to know if my thing is on line from iot remote App (and generally from dashboard?

My only idea to be shure to know if my thing is on line is to make a widget led blink with some code in the loop.

Try to exapline a switch on a light from IoT remote app from my office....How can be sure my thing is on line and the light was really turned on ?