66.249.73.50 [19/Apr/2008:03:42:20 -0700] "GET /test/read.cgi/win/1205258251/465n- HTTP/1.1" 200 7644 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:20 -0700] "GET /test/read.cgi/php/1205475360/20-119 HTTP/1.1" 200 7957 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:20 -0700] "GET /test/read.cgi/os/1126266715/25-42 HTTP/1.1" 200 2503 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:21 -0700] "GET /test/read.cgi/swf/1112972473/621-721 HTTP/1.1" 200 10902 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:21 -0700] "GET /test/read.cgi/mac/1192524709/46n- HTTP/1.1" 200 6448 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:21 -0700] "GET /test/read.cgi/hp/1158850843/87-186 HTTP/1.1" 200 7041 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:21 -0700] "GET /test/read.cgi/cg/1206469702/122n- HTTP/1.1" 200 45909 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:21 -0700] "GET /test/read.cgi/pc/1196315091/259-359 HTTP/1.1" 200 11171 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:21 -0700] "GET /test/read.cgi/hp/1194195972/44-144 HTTP/1.1" 200 9092 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
66.249.73.50 [19/Apr/2008:03:42:22 -0700] "GET /test/read.cgi/cg/1207154915/127n- HTTP/1.1" 200 8568 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"

なるほど、あれか。