That’s part of how Cloud.typography works. When you move a project into Production Mode, you’re provided with a folder of webfont data to host on your own servers. This hybrid approach allows you to benefit from both the performance of cloud computing, and the cost-effectiveness of your own hosting solution. For more information about webfont delivery, see the Cloud.typography user guide.
Hoefler & Co. offers additional delivery options for websites that receive more than twenty million pageviews per month. For more information, please contact us at firstname.lastname@example.org.