sending an e mail within the context of a rendered page e g gmail asynchronous requests ajax streaming data stock streamer security camera feed etc fig1 illustrates an example block diagram of a web transaction analysis system in accordance with aspects of this invention and provides an overview of the processes used to perform web transaction analysis the operation of the web transaction analysis system is controlled via a user interface 160 and includes a database 150 for storing parameters and heuristics used by the various elements in the system as well as for storing the results of the processing performed by the system as detailed further below the web transaction analysis system includes or is coupled to devices 110 that monitor traffic on the network using techniques common in the art the monitoring devices may include filters that are configured to capture traffic with particular attributes such as traffic to or from particular sites typically the monitoring devices will capture the header information associated with each transmission as well as at least a portion of the communicated message in particular the monitoring devices are preferably configured to capture at least a portion of the message that includes the http header introductory information the captured traffic from the monitoring devices 110 is forwarded to a stream identifier 120 that is configured to identify transaction streams including for example requests for data and the corresponding responses to these requests uspa 2007 0047438 u201c identifying a transaction of interest within a network u201d published 1 mar 2007 for malloy et al discloses techniques for tracing transactions within a plurality of communications and is incorporated by reference.