When it's with HN it shows something like the twitter feed of @HNStatus pointing out the CloudFlare server as Johannesburg with a request id (I think).
When it's with reddit it shows the reddit mascot crushed up with his orange beady eyes over a pile of orange stuff. Scary stuff.
Next time it happens, will screenshot and send to cloudflare.
I saw a cloudflare gateway timeout on HN within the last hour, and the twitter feed had a recent post excusing some technical issue.
At first, I wondered why the HN Feed never explained the downtime. Then it made sense, it must be cloudflare.
Given that CloudFlare is everywhere & on everyone's websites, it's a pain when it behaves this way affecting users all over a continent.
Uptime websites also report the site as up.
That being said the speed boost is very obvious :)