Are you in need of a sub-domain as a URL shortener or for use with DDNS?
An easy to remember URL pointing to something you want to lead people towards, or maybe you have a dynamic IP at home, pointing to a NAS or FTP server, which you want to be able to reach from the internet.
SUB-DOMAINS PROVIDED BY US ARE MANAGED THROUGH CLOUDFLARE, AND AS SUCH YOUR DDNS SERVICE MUST BE COMPATIBLE WITH THEIR API AND TOKENS.