[the author here] Indeed I mention Cloudflare quite a lot, and that is for two reasons:

(A) If you do want to have a performant website (be it static or dynamic) you do need a CDN with edge caching; else the physics with it's insistence on a cap for the light speed will put a minimum theoretical latency of 25ms say between Bucharest and Toronto, which in practical terms translates towards at least 100ms one way, or 300ms just to establish a TCP connection, and around 500 for a complete TLS handshake... And no amount of bandwidth can solve that.

(B) Cloudflare is the only free choice that allows you to use your own domain and that doesn't impose any (published) limits on your usage. If you know of other CDN providers that give you this for free please let me know and I'll add their link to the article.