Systems and methods are provided for determining media engagement information related to client devices that do not support cookies. In some embodiments, a server may receive a request for a portion of live media content from a client device that does not support cookies. The server may identify a unique identifying characteristics associated with the media request. The server may determine a number of concurrent downloads of the live media content that are associated with the unique identifying characteristic. The server may further estimate a number of client devices associated with the unique identifying characteristic that have downloaded the live media content based on the number of concurrent downloads. In some embodiments, the server may also determine a number of computing devices that support cookie information and have downloaded the live media content to determine a total number of computing devices that have downloaded the live media content.