What Is "unknown Robot (identified By 'crawl') "

[itssami 0]

Hey...On my stats page of website , i see often this bot visits my website...Unknown robot (identified by 'crawl') I see it almost every second day .Can some one please tell me which companys bot it is and what is its purpose.Note: I have submitted my website to good and other search engines , a month ago , it is on Yahoo and msn already but its not on dmoz and google.Is it related to that bot etc ??

[OpaQue 15]

There are many Search engines other than Google and Yahoo. The programmer who created your software added general Crawler recognisation code for major companies. For all other search engines whose crawling bots are not identified, it will show up as Unknown or Unidentified Bot.