Do not use #cloudflare thinking that you will be able to control your site. They are a dangerous company to work with, I've heard horror stories of big companies being threatened with brand new $100k bills. Now here I am as an individual, If you want to transfer you have to first allow them to proxy your traffic (eg MITM your site). If you do transfer a domain to them they take away your option to use your own nameserver, it costs 200 $/mo to get the feature back, its free everywhere else.