Yes. However, if you switch back to your old DNS provider, you can no longer use CloudFlare to protect and accelerate your site. To switch back to your old DNS provider, click "Deactivate" on the domain and follow the instructions.
One common question we receive: Do I need CloudFlare SSL if I already have SSL?
The answer is yes. Since CloudFlare is a proxy, you need to get a SSL certificate through our system in order to ensure your SSL connection remains intact.
Billing:
Pro accounts are $20.00 for the first website per month, $5.00 for each additional domain per month. SSL pricing is $1.00 per domain on a monthly basis.