I actually looked at all the alternatives listed by the author. Here is the problem: none of them are competitive with Cloudflare. With Cloudflare you don't even need to provide a credit card, just setup with your website and it is "free" for lifetime.

They might pressure you to switch to paid plans if you start getting PBs of traffic, but until that point they will deliver your content for free. It is a huge advantage. Specially when you consider the egress pricing of major cloud providers.