| Used Operating Systems |
| 1 | 5993 | 32.70 | 2707 | 45.53 | Windows NT |
| 2 | 5763 | 31.45 | 292 | 4.91 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 2093 | 11.42 | 1899 | 31.94 | +http://www.baidu.com/search/spider.html |
| 4 | 1809 | 9.87 | 248 | 4.17 | +http://www.google.com/bot.html |
| 5 | 684 | 3.73 | 180 | 3.03 | ezooms.bot@gmail.com |
| 6 | 604 | 3.30 | 226 | 3.80 | +http://www.bing.com/bingbot.htm |
| 7 | 364 | 1.99 | 27 | 0.45 | +http://yandex.com/bots |
| 8 | 290 | 1.58 | 30 | 0.50 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 111 | 0.61 | 68 | 1.14 | +http://www.linkdex.com/about/bots/ |
| 10 | 88 | 0.48 | 44 | 0.74 | +http://help.coccoc.com/ |
| 11 | 77 | 0.42 | 25 | 0.42 | Windows 98 |
| 12 | 72 | 0.39 | 46 | 0.77 | Windows 95 |
| 13 | 45 | 0.25 | 5 | 0.08 | +http://www.seoprofiler.com/bot |
| 14 | 38 | 0.21 | 18 | 0.30 | Auto; Windows |
| 15 | 36 | 0.20 | 2 | 0.03 | BlackBerry |
| 16 | 26 | 0.14 | 14 | 0.24 | +http://www.easou.com/search/spider.html |
| 17 | 26 | 0.14 | 15 | 0.25 | MSIE 5.5; Windows NT 5.0 |
| 18 | 19 | 0.10 | 11 | 0.19 | Android 2.3.5 |
| 19 | 18 | 0.10 | 2 | 0.03 | +http://endb-consolidated.aihit.com/ |
| 20 | 17 | 0.09 | 10 | 0.17 | X11 |
| 21 | 16 | 0.09 | 8 | 0.13 | Windows 2000 |
| 22 | 16 | 0.09 | 10 | 0.17 | MSIE 5.5; Windows NT 4.0 |
| 23 | 12 | 0.07 | 6 | 0.10 | +http://www.exabot.com/go/robot |
| 24 | 11 | 0.06 | 7 | 0.12 | ) - BrowseX (2.0.0 Windows |
| 25 | 9 | 0.05 | 7 | 0.12 | Windows CE |
| 26 | 9 | 0.05 | 5 | 0.08 | Windows 3.1 |
| 27 | 8 | 0.04 | 8 | 0.13 | Windows ME |
| 28 | 8 | 0.04 | 3 | 0.05 | Windows XP |
| 29 | 7 | 0.04 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 30 | 6 | 0.03 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 31 | 6 | 0.03 | 3 | 0.05 | +http://botw.org |
| 32 | 4 | 0.02 | 0 | 0.00 | Win32 |
| 33 | 4 | 0.02 | 2 | 0.03 | http://crawler.sistrix.net/ |
| 34 | 4 | 0.02 | 0 | 0.00 | Linux 2.4.x |
| 35 | 4 | 0.02 | 2 | 0.03 | +http://www.yunyun.com/spider.html |
| 36 | 4 | 0.02 | 1 | 0.02 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 37 | 4 | 0.02 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 38 | 3 | 0.02 | 3 | 0.05 | Linux [unknown version] |
| 39 | 3 | 0.02 | 1 | 0.02 | +info@netcraft.com |
| 40 | 2 | 0.01 | 2 | 0.03 | http://www.searchmetrics.com/en/searchme... |
| 41 | 2 | 0.01 | 2 | 0.03 | +http://pmoz.info/doc/botinfo.htm |
| 42 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 43 | 2 | 0.01 | 2 | 0.03 | FreeBSD [unknown version] |
| 44 | 2 | 0.01 | 2 | 0.03 | +http://www.solomono.ru |
| 45 | 2 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 46 | 1 | 0.01 | 1 | 0.02 | X11; Linux i686; de |
| 47 | 1 | 0.01 | 0 | 0.00 | +http://siteexplorer.info/ |
