| Used Operating Systems |
| 1 | 19503 | 73.79 | 177 | 4.68 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4105 | 15.53 | 2551 | 67.45 | +http://www.baidu.com/search/spider.html |
| 3 | 831 | 3.14 | 467 | 12.35 | Windows NT |
| 4 | 602 | 2.28 | 215 | 5.68 | +http://www.bing.com/bingbot.htm |
| 5 | 579 | 2.19 | 8 | 0.21 | +http://OpenLinkProfiler.org/bot |
| 6 | 475 | 1.80 | 193 | 5.10 | +http://www.google.com/bot.html |
| 7 | 143 | 0.54 | 69 | 1.82 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 48 | 0.18 | 13 | 0.34 | +http://yandex.com/bots |
| 9 | 29 | 0.11 | 9 | 0.24 | +http://www.exabot.com/go/robot |
| 10 | 18 | 0.07 | 5 | 0.13 | +http://www.linkdex.com/bots/ |
| 11 | 16 | 0.06 | 13 | 0.34 | Windows 98 |
| 12 | 15 | 0.06 | 3 | 0.08 | +http://ahrefs.com/robot/ |
| 13 | 14 | 0.05 | 14 | 0.37 | Windows 95 |
| 14 | 8 | 0.03 | 8 | 0.21 | ) - BrowseX (2.0.0 Windows |
| 15 | 6 | 0.02 | 6 | 0.16 | Windows CE |
| 16 | 6 | 0.02 | 6 | 0.16 | MSIE 5.5; Windows NT 4.0 |
| 17 | 4 | 0.02 | 4 | 0.11 | Windows 2000 |
| 18 | 4 | 0.02 | 4 | 0.11 | Auto; Windows |
| 19 | 4 | 0.02 | 2 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 20 | 4 | 0.02 | 2 | 0.05 | +http://duckduckgo.com |
| 21 | 3 | 0.01 | 3 | 0.08 | Windows ME |
| 22 | 3 | 0.01 | 3 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 23 | 2 | 0.01 | 2 | 0.05 | http://nmap.org/book/nse.html |
| 24 | 2 | 0.01 | 1 | 0.03 | Windows XP |
| 25 | 2 | 0.01 | 1 | 0.03 | +info@netcraft.com |
| 26 | 1 | 0.00 | 1 | 0.03 | Windows 3.1 |
| 27 | 1 | 0.00 | 1 | 0.03 | X11 |
| 28 | 1 | 0.00 | 1 | 0.03 | Linux i686 [unknown version] |
