| Used Operating Systems |
| 1 | 14097 | 60.47 | 4416 | 66.31 | Windows NT |
| 2 | 4560 | 19.56 | 345 | 5.18 | help@moz.com |
| 3 | 1835 | 7.87 | 1458 | 21.89 | +http://www.baidu.com/search/spider.html |
| 4 | 635 | 2.72 | 113 | 1.70 | +http://www.google.com/bot.html |
| 5 | 610 | 2.62 | 16 | 0.24 | Windows 98 |
| 6 | 390 | 1.67 | 138 | 2.07 | +http://www.bing.com/bingbot.htm |
| 7 | 336 | 1.44 | 12 | 0.18 | +http://www.easou.com/search/spider.html |
| 8 | 265 | 1.14 | 41 | 0.62 | +http://yandex.com/bots |
| 9 | 73 | 0.31 | 18 | 0.27 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 67 | 0.29 | 7 | 0.11 | X11 |
| 11 | 42 | 0.18 | 3 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 12 | 40 | 0.17 | 19 | 0.29 | +http://www.exabot.com/go/robot |
| 13 | 36 | 0.15 | 20 | 0.30 | Windows 95 |
| 14 | 36 | 0.15 | 5 | 0.08 | Android 2.3.5 |
| 15 | 35 | 0.15 | 1 | 0.02 | Windows 92 |
| 16 | 31 | 0.13 | 3 | 0.05 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 17 | 30 | 0.13 | 2 | 0.03 | +http://endb-consolidated.aihit.com/ |
| 18 | 27 | 0.12 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 19 | 22 | 0.09 | 2 | 0.03 | http://www.searchmetrics.com/en/searchme... |
| 20 | 17 | 0.07 | 5 | 0.08 | +http://fulltext.sblog.cz/ |
| 21 | 14 | 0.06 | 2 | 0.03 | http://www.majestic12.co.uk/bot.php?+ |
| 22 | 14 | 0.06 | 1 | 0.02 | Intel Mac OS X 10.6 |
| 23 | 10 | 0.04 | 5 | 0.08 | http://crawler.sistrix.net/ |
| 24 | 10 | 0.04 | 1 | 0.02 | +http://www.linkpad.ru |
| 25 | 8 | 0.03 | 3 | 0.05 | Windows XP |
| 26 | 8 | 0.03 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 27 | 8 | 0.03 | 3 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 28 | 7 | 0.03 | 0 | 0.00 | Win32 |
| 29 | 6 | 0.03 | 4 | 0.06 | Windows ME |
| 30 | 6 | 0.03 | 2 | 0.03 | Windows 3.1 |
| 31 | 5 | 0.02 | 0 | 0.00 | Macintosh PPC |
| 32 | 4 | 0.02 | 3 | 0.05 | Auto; Windows |
| 33 | 4 | 0.02 | 0 | 0.00 | Linux 2.4.x |
| 34 | 4 | 0.02 | 1 | 0.02 | +http://www.yunyun.com/spider.html |
| 35 | 4 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 36 | 4 | 0.02 | 2 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 37 | 4 | 0.02 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 38 | 3 | 0.01 | 2 | 0.03 | Windows 2000 |
| 39 | 3 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 40 | 2 | 0.01 | 1 | 0.02 | +http://www.compspy.com/spider.html |
| 41 | 2 | 0.01 | 1 | 0.02 | ScoutJet; +http://blekko.com/about/blekk... |
