Unknown robot (identified by 'bot*') 71,676+192
Unknown robot (identified by 'spider') 2,042+103
Unknown robot (identified by '*bot') 1,559+221
Unknown robot (identified by 'robot') 1,751+23
Unknown robot (identified by 'crawl') 860+107
how to get rid of unwanted bots? white list, black list? how to do it?