Looks like Salesforce and Cloudflare sharing the same datacenter. Salesforce had the same issue today and they mentioned similar power failure as the root cause.
It is a known fact that salesforce is running its "Hyperforce" in AWS.
Does that mean Cloudflare also using AWS?
Does anyone faced any issue on AWS resources today?
Judging from the AWS status page it seems that all services are up and running without any issues.
https://health.aws.amazon.com/health/status
Cloudflare, as far is I know, doesn't use any AWS products.