In this case it is not. A power outage in a critical data-center is the root cause here: https://www.cloudflarestatus.com/incidents/hm7491k53ppg
I assume both Clouflare and Flexential are on DEFCON 1 right now, but I'm wondering if it might be more than just the building going dark.
There's something about a failover than was attempted and crashed halfway through, but unclear if that's what's causing the 24h+ situation.
To have 30% of the internet relying on a single building in a single city is hilarious.