How is data transfer billed when DCDN is used with other Alibaba Cloud services?

For example, Customer A activated DCDN and OSS to provide file distribution services. If a client requests resources from an edge node that does not have the corresponding resources cached, the edge node redirects the request to the specified OSS bucket. In this case, Customer A is charged for the outbound traffic of DCDN and the outbound traffic of OSS. The outbound traffic of DCDN and OSS is billed separately.

• When an edge node retrieves resources from an OSS bucket, data is transmitted from the OSS bucket to the edge node. In this case, DCDN does not charge fees but OSS does.
  Note

  • If the accelerated region is outside the Chinese mainland and an OSS bucket is used as the origin server, you are not charged for data transfer from edge nodes in the accelerated region to the origin server.
  • If the accelerated region is outside the Chinese mainland and an OSS bucket is used as the origin server, you are charged for data transfer from edge nodes in the Chinese mainland to the origin server.
  • If the accelerated region is in the Chinese mainland and an OSS bucket is used as the origin server, you are charged for data transfer from edge nodes to the origin server.
• If the requested resources are already cached on the edge node, data is transmitted from the edge node to the client. In this case, OSS does not charge fees but DCDN does.