| Used Operating Systems |
| 1 | 6097 | 38.97 | 113 | 2.30 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4351 | 27.81 | 2188 | 44.47 | Windows NT |
| 3 | 1797 | 11.49 | 1698 | 34.51 | +http://www.baidu.com/search/spider.html |
| 4 | 917 | 5.86 | 45 | 0.91 | Windows 98 |
| 5 | 799 | 5.11 | 366 | 7.44 | +http://www.bing.com/bingbot.htm |
| 6 | 558 | 3.57 | 193 | 3.92 | +http://www.google.com/bot.html |
| 7 | 301 | 1.92 | 102 | 2.07 | +http://www.linkdex.com/bots/ |
| 8 | 243 | 1.55 | 36 | 0.73 | +http://yandex.com/bots |
| 9 | 153 | 0.98 | 44 | 0.89 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 110 | 0.70 | 10 | 0.20 | +http://www.profound.net/urlappendbot.ht... |
| 11 | 37 | 0.24 | 12 | 0.24 | +http://www.exabot.com/go/robot |
| 12 | 29 | 0.19 | 12 | 0.24 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 28 | 0.18 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 14 | 27 | 0.17 | 8 | 0.16 | +http://www.easou.com/search/spider.html |
| 15 | 25 | 0.16 | 23 | 0.47 | Windows 95 |
| 16 | 24 | 0.15 | 11 | 0.22 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 23 | 0.15 | 10 | 0.20 | +http://ahrefs.com/robot/ |
| 18 | 18 | 0.12 | 1 | 0.02 | Windows 92 |
| 19 | 18 | 0.12 | 8 | 0.16 | X11 |
| 20 | 13 | 0.08 | 1 | 0.02 | +http://endb-consolidated.aihit.com/ |
| 21 | 9 | 0.06 | 7 | 0.14 | +http://wmaid.com/explore/ |
| 22 | 6 | 0.04 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 23 | 6 | 0.04 | 4 | 0.08 | Windows 3.1 |
| 24 | 5 | 0.03 | 3 | 0.06 | Android 2.3.5 |
| 25 | 5 | 0.03 | 2 | 0.04 | +http://www.semrush.com/bot.html |
| 26 | 5 | 0.03 | 1 | 0.02 | +http://freedlf.com/ |
| 27 | 5 | 0.03 | 2 | 0.04 | +http://gimme60.com |
| 28 | 5 | 0.03 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 29 | 4 | 0.03 | 4 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 30 | 3 | 0.02 | 3 | 0.06 | Windows ME |
| 31 | 3 | 0.02 | 2 | 0.04 | +info@netcraft.com |
| 32 | 2 | 0.01 | 0 | 0.00 | not on Windows server; |
| 33 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 34 | 2 | 0.01 | 1 | 0.02 | http://crawler.sistrix.net/ |
| 35 | 2 | 0.01 | 1 | 0.02 | Windows XP |
| 36 | 2 | 0.01 | 1 | 0.02 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 37 | 2 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 38 | 2 | 0.01 | 2 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 39 | 2 | 0.01 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 40 | 1 | 0.01 | 1 | 0.02 | Windows 2000 |
| 41 | 1 | 0.01 | 1 | 0.02 | Windows CE |
| 42 | 1 | 0.01 | 1 | 0.02 | +http://136.186.231.16 |
| 43 | 1 | 0.01 | 0 | 0.00 | Linux 2.4.x |
