Twitch Broadcasting Api

The idea of asking user about server make sense.
On the other note, OBS streams well for me.
My question is more from rtmp debugging point of view, how to determine, if livestream is being “ACTUALLY” streamed or not? OR if in my case, if obs is working and my application is not, is there any way to debug , why it is being rejected or fault information, for stream not to be shown?