CloudFlare is a CDN (content delivery network) with a security layer. Once a website is part of the CloudFlare community, its web traffic is routed through CloudFlare’s global network.
CloudFlare’s network also blocks threats and limits abusive bots before they hit the server, which means less wasted bandwidth and server resources.
NOTE: Cloudflare will proxy these ports:
80 443 2052 2053 2082 2083 2086 2087 2095 2096 8080 8443 8880