I’ve subscribe to separate entities for DNS Hosting and Domain Registrar. There are several Application’s subdomain contained inside the DNS Hosting record not just website.
When i want to use Cloudflare CDN service they require me to change the nameserver on the Registrar after they list the DNS record that they found.
So my questions are,
What will happen to my previous DNS Hosting after i change the nameserver on Registrar to Cloudflare’s?
Is there any downtime? because there are several Application server attached to the subdomain in the DNS record.
Really appreciate if someone could help me on this.