A first server may receive, from a client device, an indication of a request for a content file via a network address; identify that the network address is a dynamic network address; establish a communication session with a second; receive a portion of the content file from the second server; determine an index parameter based on receiving the portion of the content file; determine whether the content file is being stored by the first server based on a cache index and based on the index parameter or based on information associated with the request for the content file; receive a remaining portion of the content file based on determining that the content file is not being stored by the first server; and provide the content file to the client device.