Why is serveral instances down simultaneously? Is it just me?

Can't post images because they're too big so here's imgur: https://imgur.com/a/Fm52ZTB

Edit: lemmy.ml and lemmy.world seem to have come back, I'm just a bit worried that it's another one of those hacks.

Edit 2: Most of those I've tried came back. reddthat.com and sh.itjust.works seems to still be down