A method for detecting real-time delays in electronic communications over computer networks, using parallel processing streams, in an ongoing manner and with limited access to intermediary devices, the method comprising:
- receiving an incoming data stream, wherein the incoming data stream is destined for an intermediary device, wherein the incoming data stream comprises time-series data comprising data packets at discrete time intervals, and wherein a first application implemented on the intermediary device performs one or more processing actions based on information detected in the data packets;
- generating a parallel processing stream by mirroring the incoming data stream prior to receipt by the intermediary device and supplementing each of the data packets with a respective sequence indicium corresponding to a respective time interval to generate supplemented data packets, wherein the parallel processing stream is destined for a second application implemented on a secondary device;
- comparing a first sequence indicium from a first data packet from the supplemented data packets to a second sequence indicium from a second data packet from the supplemented data packets to determine a processing speed for the first application;
- and
- determining the processing speed for the first application based on comparing the first sequence indicium to the second sequence indicium.