How to add A Record to cloudflare on free cloudns freezone?
Support Cloudflare's NameServers:
ns-host1.ns.cloudflare.com
ns-host2.ns.cloudflare.com
Add A Record host-name.my.domain at cloudflare
Add 2 NS Record host-name.my.domain with value ns-host1.ns.cloudflare.com, ns-host2.ns.cloudflare.com at Cloudns
Wait it!