Notice:

We've recently performed some software upgrades to both cPanel and the Client Area that has resulted in some of the KB articles appearing outdated and obsolete. We are working to update and/or remove the affected articles but this may take some time. We appreciate your patience!

Are there sub-domains I shouldn't enable with CloudFlare?

Sub-domains on CloudFlare are marked with an orange cloud. Sub-domains not on CloudFlare are marked with a gray cloud.

The CloudFlare network can only proxy web traffic over port 80 and 443. The following sub-domains should be marked with a gray cloud to prevent performance issues:

cpanel
direct
ftp
ghs.google.com
mail and webmail
mysql
nameservers (NS1, NS2)
secure* (unless you enable CloudFlare SSL)

View the full list of sub-domains here:

http://www.cloudflare.com/wiki/What_subdomains_are_appropriate_for_orange_/_gray_clouds