Your plan includes a free data transfer allowance. Both data transfer in and data transfer out of your instance count toward your data transfer allowance. For Lightsail content delivery network (CDN) distributions, only data transfer out of your distribution counts toward your allowance. If you exceed your data transfer allowance, you will only get charged for data transfer OUT from a Lightsail instance to the Internet or to AWS resources using the public IP address of the instance. This additional charge for data transfer beyond allowance is also payable for resources that are within their free trial period. Both data transfer IN to Lightsail instances and data transfer OUT from a Lightsail instance when using the instance’s private IP address are free beyond your data transfer allowance. For Lightsail CDN distributions, all data transfer out of your distribution will incur a charge once you exceed your distribution data transfer allowance.