I found myself unable to connect to battle.net (the gaming network as opposed to the battle.net website). In this case the problem was with battle.net service. In the future I would like to check if the issue is on my side or if the battle.net service is down.
I was using the battle.net login client.
Specifically, I was unable to log into the battle.net service. I am not interested in any of the game specific servers.
How can I check the status of battle.net?
Is there an official status of the battle.net service available somewhere?