| Used Operating Systems |
| 1 | 5423 | 62.80 | 3157 | 59.12 | Windows NT |
| 2 | 1606 | 18.60 | 1580 | 29.59 | +http://www.baidu.com/search/spider.html |
| 3 | 466 | 5.40 | 169 | 3.16 | +http://www.google.com/bot.html |
| 4 | 431 | 4.99 | 191 | 3.58 | +http://www.bing.com/bingbot.htm |
| 5 | 262 | 3.03 | 22 | 0.41 | +http://yandex.com/bots |
| 6 | 73 | 0.85 | 36 | 0.67 | ezooms.bot@gmail.com |
| 7 | 54 | 0.63 | 32 | 0.60 | X11 |
| 8 | 42 | 0.49 | 12 | 0.22 | http://www.majestic12.co.uk/bot.php?+ |
| 9 | 36 | 0.42 | 35 | 0.66 | Windows 95 |
| 10 | 34 | 0.39 | 1 | 0.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 30 | 0.35 | 7 | 0.13 | +http://siteexplorer.info/ |
| 12 | 23 | 0.27 | 11 | 0.21 | Android 2.3.5 |
| 13 | 20 | 0.23 | 2 | 0.04 | http://crawler.sistrix.net/ |
| 14 | 16 | 0.19 | 11 | 0.21 | Windows 98 |
| 15 | 12 | 0.14 | 1 | 0.02 | http://www.dataprovider.com/ |
| 16 | 12 | 0.14 | 6 | 0.11 | +http://www.exabot.com/go/robot |
| 17 | 10 | 0.12 | 1 | 0.02 | +http://www.aihit.com/ |
| 18 | 8 | 0.09 | 8 | 0.15 | Windows CE |
| 19 | 8 | 0.09 | 3 | 0.06 | Windows XP |
| 20 | 7 | 0.08 | 7 | 0.13 | ) - BrowseX (2.0.0 Windows |
| 21 | 6 | 0.07 | 6 | 0.11 | Auto; Windows |
| 22 | 6 | 0.07 | 6 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 23 | 6 | 0.07 | 6 | 0.11 | MSIE 5.5; Windows NT 4.0 |
| 24 | 5 | 0.06 | 5 | 0.09 | +http://help.soso.com/webspider.htm |
| 25 | 5 | 0.06 | 5 | 0.09 | Windows ME |
| 26 | 4 | 0.05 | 4 | 0.07 | +http://pmoz.info/doc/botinfo.htm |
| 27 | 4 | 0.05 | 2 | 0.04 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 28 | 4 | 0.05 | 2 | 0.04 | http://www.botje.com/plukkie.htm |
| 29 | 4 | 0.05 | 3 | 0.06 | +http://www.semrush.com/bot.html |
| 30 | 3 | 0.03 | 3 | 0.06 | Windows 2000 |
| 31 | 2 | 0.02 | 0 | 0.00 | Mail.RU_Bot/Img/2.0; +http://go.mail.ru/... |
| 32 | 2 | 0.02 | 0 | 0.00 | http://help.yahoo.com/help/us/ysearch/sl... |
| 33 | 2 | 0.02 | 1 | 0.02 | Linux 2.4.x |
| 34 | 2 | 0.02 | 1 | 0.02 | +http://www.yunyun.com/spider.html |
| 35 | 2 | 0.02 | 2 | 0.04 | Windows 3.1 |
| 36 | 1 | 0.01 | 0 | 0.00 | Win32 |
| 37 | 1 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 38 | 1 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 39 | 1 | 0.01 | 1 | 0.02 | Linux i686 [unknown version] |
| 40 | 1 | 0.01 | 1 | 0.02 | +info@netcraft.com |
