In one or more implementations, data is examined that describes {HEAD ~ interactions} via a network with content via {TAIL ~ a domain name} 
In one or more implementations , data is examined that describes { HEAD ~ interactions } via a network with content via { TAIL ~ a domain name }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL