During September, AAO is going to move to a different server configuration, offering better performance and more control for me.
This move will occur in two steps.
The first step, actually transferring AAO to the a materially different server, should take place on Thursday September 8th, starting around 9am (French time zone : UTC+2).
This means that for a while the whole website will be unavailable.
Hopefully, it shouldn't last more than a few hours.
Bottom line is : don't freak out when you notice AAO doesn't work on Thursday