No idea?

They came along, out of nowhere and started offering their infrastructure, their global distribution network for free as a reverse proxy. This allowed people to scale their single-server-services out for nothing, it insulated servers from DDoS and single-government action. For the people that needed it, it took 10 minutes and revolutionised a lot of slow websites.

But then they started offering actual services. A formal CDN, largely for free but after that, pennies on the dollar of what major players were asking. And 6 years ago they started building your stuff for you, allowing you to host it near your users. They sell domains at cost, host DNS for nothing, and handle inbound email for you.

As a webdev, they're making my life very simple. Things that took me a day to bash out and bootstrap for a new client, I've done with CloudFlare while the client is on the phone.

If they vanished tomorrow, it'd be a wrench. But that's true of so much online infrastructure. Where would you be without Github, NPM, PyPI, dockerhub, etc? Enjoy it while we can.