Describe the issue you are having:
1)we want to host few selected subdomains through cloudflare.
2) In case of emergency can we add *.domain to migrate all subdomains (approximately 1500 sub domains) ? (similar we are doing with AWS cloudfront it is doable over their setup)
3) We have some white label clients and for those ssl certificate will be needed. presently AWS cloud front providing free of cost ssl certificate how your platform will be treat in this scenario ?
We want to achieve all above without shifting our nameserver, it will be remain same as it is now. So is it achievable without changing nameserver ?
Business plan is the suitable plan for my requirements ?