Disclosed are various embodiments for optimizing broadcast messaging for a node. The node receives data for a message from the network. While the data for the message is being received and upon completion of an initial portion of the message, the node determines identification information for the message specified in the initial portion. When (i) the identification information specifies that the message is a broadcast message and (ii) an identifier in the message matches a stored identifier of a previously received broadcast message, the node terminates receiving the data for the remainder of the message. Alternatively, when (i) the identification information specifies that the message is a broadcast message and (ii) the identifier in the message does not match any stored identifier of a previously received broadcast message, the node continues receiving data for the subsequent portion of the message and stores the identifier for the broadcast message.