Cloudflare allows traffic for the default cPanel ports, 2082 (HTTP) and 2083 (HTTPS).
To access your cPanel with Cloudflare enabled, try any of the following:
- example.com:2082/
- example.com:2083/ (over SSL)
- example.com/cpanel (often a redirect to one of the above)
If you want to access cPanel without going through Cloudflare, try one of the following
- cpanel.example.com (if you've set up that DNS record)
Related:
If you have problems with cPanel behind Cloudflare, review "Cookie IP Validation" settings.