{HEAD ~ These data values} are processed to evaluate a standing of the target web site relative to the field web sites, while maintaining {TAIL ~ anonymity} of the field web sites 
{ HEAD ~ These data values } are processed to evaluate a standing of the target web site relative to the field web sites , while maintaining { TAIL ~ anonymity } of the field web sites
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH