66.6% of traffic per DNS request is a metric of network traffic. You could measure by bandwidth, by number of packets, by number of sessions, etc. There are m

66.6% of traffic per DNS request is a metric of network traffic. You could measure by bandwidth, by number of packets, by number of sessions, etc. There are many measurements one could use, and DNS requests is one of them. It would probably be irrelevant for other purposes but isn't a crazy measurement given this context. It would be pretty difficult to measure by more typical measures (e.g. bandwidth) because if you block DNS resolution you don't know the size of the resources you are blocking...