Techniques are provided for adjusting or modifying content request messages in a video streaming environment. An aggregation device is configured to receive a content request message from a client device. The content request message has a request for a first content file of a video stream of a content file type with a first bit rate. The aggregation device determines the first bit rate. The aggregation device then accesses a database that stores a plurality of content files of the content file type at a corresponding plurality of bit rates and determines all available bit rates of the content file type. Network conditions are analyzed for client devices to determine whether the content request message should be adjusted to request a second content file with a second bit rate that is lower than the first bit rate.