(1) In Synthetic Monitoring, the private protocol does not support packet capture, so to view the data, you need to manually Instant Testing and check the packet capture (2) Instant Testing grabs data and views (3) Make data and download captured packets (4) Use wireshark to open the downloaded toolkit, use ip.addr, and filter out Request (5) Find the ACK packet, right-click the mouse, and select the first "TCP stream" in "Tracing stream" (6) The dialog box that pops up is the transmitted content