www.speedtest.net.cdn.cloudflare.net has address 104.17.148.22
This page provides an online version of the OS hostname and whois commands. It allows you to retrieve publicly available DNS and Whois information for any website or hostname through a single interface.
Host Info
cleantalk.org:~$ host www.speedtest.net.cdn.cloudflare.net
www.speedtest.net.cdn.cloudflare.net has address 104.17.148.22
www.speedtest.net.cdn.cloudflare.net has address 104.17.147.22
Whois info
cleantalk.org:~$ whois www.speedtest.net.cdn.cloudflare.net
An unexpected issue occurred. Please report it to support@cleantalk.org