At 8:23 AM (UTC+1) the server was unresponsive for 13 minutes, but so were a bunch of other servers, so this must have been a provider issue.
At 1:18 PM (UTC+1), hub.learningequality.org became unresponsive again through HTTP. But I had a direct connection to the server. No signs of overload, but the HTTP server isn’t responding.
So once again, something is wrong. will get back to you.