What is Cloudflare and what is it used for?
Cloudflare is a global network that sits between a website and its visitors to speed up loading (CDN), block attacks and protect the domain with HTTPS and a firewall. It serves any company with a website, online store or API that wants more speed and protection without changing hosts.
It works as a proxy. The domain points to Cloudflare, which serves cached content from a city close to the visitor and filters malicious traffic before it reaches the origin server. The network spans more than 330 cities.
Beyond the website layer, Cloudflare sells other building blocks, each with its own price list:
- a developer platform (Workers, Pages, R2) for running code and storing files on the same network;
- Zero Trust, which controls employee access to internal systems in place of a corporate VPN;
- add-ons such as Load Balancing and Stream, for load balancing and video.
The website plans are Free, Pro, Business and Enterprise, billed per domain. A company with three sites pays three subscriptions, one per domain, and can keep each one on a different plan.






