Okay, thanks a lot for the reply, apparently it is not that easy to find somebody who knows what happened with that let's call it downtime of steemit.com.
So the apps that are connecting to the Steemit RPC node could somehow check if this node is down and switch to another one during the downtime? Is that possible or I am talking nonsense?
It would be up to the individual application developers to support that. It is possible though, and would be a smart way to design a more fault-tolerant app.