213.10.10.117 - - [22/Apr/2001:17:28:27 -0400] "GET /robots.txt HTTP/1.1" 404 228 "-" "appie/1.1"
213.10.10.117 - - [22/Apr/2001:17:28:28 -0400] "GET /portfolio.html HTTP/1.1" 200 6743 "-" "appie/1.1"
Can a visit by a known spider in close proximity time-wise give a clue to the identity of ones that are unknown?