| Used Operating Systems |
| 1 | 15911 | 40.92 | 237 | 4.01 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8299 | 21.35 | 428 | 7.24 | +http://yandex.com/bots |
| 3 | 4518 | 11.62 | 3178 | 53.74 | +http://www.baidu.com/search/spider.html |
| 4 | 4006 | 10.30 | 4 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 5 | 2000 | 5.14 | 764 | 12.92 | Windows NT |
| 6 | 1472 | 3.79 | 619 | 10.47 | +http://www.google.com/bot.html |
| 7 | 924 | 2.38 | 252 | 4.26 | +http://www.bing.com/bingbot.htm |
| 8 | 317 | 0.82 | 79 | 1.34 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 260 | 0.67 | 36 | 0.61 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 250 | 0.64 | 1 | 0.02 | Linux [unknown version] |
| 11 | 168 | 0.43 | 0 | 0.00 | Windows 92 |
| 12 | 165 | 0.42 | 7 | 0.12 | +http://siteexplorer.info/ |
| 13 | 91 | 0.23 | 60 | 1.01 | +http://www.xovibot.net/ |
| 14 | 73 | 0.19 | 13 | 0.22 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 67 | 0.17 | 65 | 1.10 | Windows 95 |
| 16 | 61 | 0.16 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 17 | 54 | 0.14 | 13 | 0.22 | +http://www.linkdex.com/bots/ |
| 18 | 42 | 0.11 | 6 | 0.10 | +spider@seoscanners.net |
| 19 | 37 | 0.10 | 33 | 0.56 | Windows 98 |
| 20 | 30 | 0.08 | 2 | 0.03 | +https://www.dataprovider.com/ |
| 21 | 17 | 0.04 | 15 | 0.25 | MSIE 5.5; Windows NT 4.0 |
| 22 | 14 | 0.04 | 10 | 0.17 | Windows XP |
| 23 | 14 | 0.04 | 12 | 0.20 | Windows 3.1 |
| 24 | 12 | 0.03 | 12 | 0.20 | Windows 2000 |
| 25 | 12 | 0.03 | 12 | 0.20 | MSIE 5.5; Windows NT 5.0 |
| 26 | 12 | 0.03 | 10 | 0.17 | +info@netcraft.com |
| 27 | 12 | 0.03 | 12 | 0.20 | ) - BrowseX (2.0.0 Windows |
| 28 | 10 | 0.03 | 10 | 0.17 | Windows CE |
| 29 | 9 | 0.02 | 9 | 0.15 | Auto; Windows |
| 30 | 9 | 0.02 | 9 | 0.15 | Windows ME |
| 31 | 6 | 0.02 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 32 | 5 | 0.01 | 3 | 0.05 | +http://www.uptime.com/uptimebot |
| 33 | 2 | 0.01 | 2 | 0.03 | Intel Mac OS X |
| 34 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
