I just grep'd the nginx access log for the lemmy.world IP address and looked at the access times. you can see if it's timing out is the response code is 400. sadly ~57% of the requests are currently timing out today. it seems to work for a bit then time out for about 10 minutes, at least there is some coming through now, before the requests had stopped completely.
lemmy.ml is also back in my logs. yay
lemmy.ml is almost perfect on the timeouts, so they must have managed to fix it.
This is wrong, I use IPTables but the device is absolutely not dedicated lol.