Would actually be this link.
https://na.finalfantasyxiv.com/lodes...ede8c253c9720b
There is a world maintenance from 6pm-3am PST, but NA servers are down 3am-3am PST.

For some reason this notice is shown second when you launch the game and you have to scroll down to see it. I wasn't even aware about it until a few minutes ago when I ran into the issue myself.