How RocketCDN subscription works with multisite, domains and subdomains?

Currently, one RocketCDN subscription can be used for:

• One TLD, e.g. example.com.
• Unlimited sub-folder installations, e.g. example.com/site1, example.com/site2 etc.

Separate subscriptions will be required for each subdomain, e.g. staging.example.com, staging2.example.com...

To use RocketCDN on multisites or subfolder installations, purchase a RocketCDN subscription for the TLD site, e.g. example.com.

Then copy your RocketCDN URL and manually add it to the CDN tab on the sub-folder site.