The Query Log tool contains a near real-time log of all DNS queries for your account (only the traffic for one site or Roaming Client at a time can be viewed due to system limitations).
The Query Log is valuable for determining how traffic is being classified and from which location it is coming. You will be able to see the local IP when a relay is set up and see the local username when they are utilizing a roaming client under the "Local User Name / IP Address" column. If they are using a network deployment, nothing will be displayed in this column. It is the first tool to check if you are troubleshooting why you have Pages Not Loading.
You can download the results as a CSV for up to the last 72 hours using the "Download as…" option.