Cloudflare is a free system which is designed for acting as a proxy between users and server.
If any website is a part of a cloudflare it protects the website and gives security to route safely on global network. Visitors get the fastest connection and alert from threat when they are connected with cloudflare.
The offline browsing mode, threat and spam protection, SSL support, reduced server load, bandwidth saving.
It lowers the CPU uses of Computer.