Cloudflare Spectrum documentation
Welcome to Spectrum: security and acceleration for any TCP or UDP based application. That means you can route MQTT, email, file transfer, version control, games, anything over TCP or UDP through Cloudflare to mask the origin and protect it from DDoS. Spectrum is available on all paid plans. Pro and Business support selected protocols only, whereas Enterprise supports all TCP and UDP based traffic. Look at for an in-depth breakdown.