| Used Operating Systems |
| 1 | 6435 | 43.80 | 75 | 1.76 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 3106 | 21.14 | 1356 | 31.75 | Windows NT |
| 3 | 2476 | 16.85 | 2188 | 51.23 | +http://www.baidu.com/search/spider.html |
| 4 | 682 | 4.64 | 113 | 2.65 | +http://www.google.com/bot.html |
| 5 | 593 | 4.04 | 130 | 3.04 | +http://www.bing.com/bingbot.htm |
| 6 | 336 | 2.29 | 21 | 0.49 | +http://yandex.com/bots |
| 7 | 258 | 1.76 | 0 | 0.00 | +http://www-935.ibm.com/services/us/inde... |
| 8 | 235 | 1.60 | 7 | 0.16 | X11 |
| 9 | 111 | 0.76 | 110 | 2.58 | http://www.yodao.com/help/webmaster/spid... |
| 10 | 60 | 0.41 | 50 | 1.17 | +http://shoulu.jike.com/spider.html |
| 11 | 51 | 0.35 | 10 | 0.23 | MirrorDetector; +http://yandex.com/bots |
| 12 | 48 | 0.33 | 11 | 0.26 | +http://www.exabot.com/go/robot |
| 13 | 40 | 0.27 | 20 | 0.47 | +http://www.career-x.de/bot.html |
| 14 | 35 | 0.24 | 35 | 0.82 | http://www.youdao.com/help/webmaster/spi... |
| 15 | 29 | 0.20 | 25 | 0.59 | Windows 95 |
| 16 | 25 | 0.17 | 20 | 0.47 | +http://help.soso.com/webspider.htm |
| 17 | 19 | 0.13 | 4 | 0.09 | Windows 98 |
| 18 | 18 | 0.12 | 9 | 0.21 | http://crawler.sistrix.net/ |
| 19 | 14 | 0.10 | 10 | 0.23 | Windows 2000 |
| 20 | 13 | 0.09 | 6 | 0.14 | +http://ahrefs.com/robot/ |
| 21 | 10 | 0.07 | 4 | 0.09 | +http://snipebot.com/bot.html |
| 22 | 10 | 0.07 | 2 | 0.05 | +http://go.mail.ru/help/robots |
| 23 | 10 | 0.07 | 9 | 0.21 | Windows 3.1 |
| 24 | 10 | 0.07 | 5 | 0.12 | +http://www.acoon.de/robot.asp |
| 25 | 8 | 0.05 | 7 | 0.16 | Windows CE |
| 26 | 8 | 0.05 | 7 | 0.16 | MSIE 5.5; Windows NT 5.0 |
| 27 | 8 | 0.05 | 6 | 0.14 | ) - BrowseX (2.0.0 Windows |
| 28 | 6 | 0.04 | 6 | 0.14 | Intel Mac OS X 10.4 |
| 29 | 6 | 0.04 | 2 | 0.05 | ezooms.bot@gmail.com |
| 30 | 6 | 0.04 | 3 | 0.07 | +http://siteexplorer.info/ |
| 31 | 5 | 0.03 | 2 | 0.05 | Windows XP |
| 32 | 4 | 0.03 | 4 | 0.09 | Auto; Windows |
| 33 | 4 | 0.03 | 2 | 0.05 | +http://www.seoprofiler.com/bot |
| 34 | 4 | 0.03 | 4 | 0.09 | MSIE 5.5; Windows NT 4.0 |
| 35 | 2 | 0.01 | 1 | 0.02 | http://help.zum.com/inquiry |
| 36 | 2 | 0.01 | 2 | 0.05 | Windows ME |
| 37 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 38 | 2 | 0.01 | 2 | 0.05 | AnyEvent-HTTP/2.14; +http://software.sch... |
| 39 | 1 | 0.01 | 1 | 0.02 | http://www.searchmetrics.com/en/searchme... |
| 40 | 1 | 0.01 | 1 | 0.02 | 68K; Trident/5.0 |
