| Used Operating Systems |
| 1 | 9456 | 28.57 | 7671 | 58.38 | +http://ahrefs.com/robot/ |
| 2 | 7013 | 21.19 | 16 | 0.12 | +http://www.warebay.com/bot.html |
| 3 | 5348 | 16.16 | 4272 | 32.51 | +http://www.baidu.com/search/spider.html |
| 4 | 5116 | 15.45 | 28 | 0.21 | http://www.majestic12.co.uk/bot.php?+ |
| 5 | 2387 | 7.21 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 6 | 2185 | 6.60 | 475 | 3.62 | Windows NT |
| 7 | 432 | 1.31 | 178 | 1.35 | +http://www.google.com/bot.html |
| 8 | 415 | 1.25 | 98 | 0.75 | +http://yandex.com/bots |
| 9 | 275 | 0.83 | 103 | 0.78 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 258 | 0.78 | 146 | 1.11 | +http://www.bing.com/bingbot.htm |
| 11 | 78 | 0.24 | 26 | 0.20 | +http://www.linkdex.com/bots/ |
| 12 | 55 | 0.17 | 47 | 0.36 | +http://www.uptime.com/uptimebot |
| 13 | 39 | 0.12 | 36 | 0.27 | +http://www.xovibot.net/ |
| 14 | 11 | 0.03 | 10 | 0.08 | Windows 95 |
| 15 | 7 | 0.02 | 5 | 0.04 | Windows 98 |
| 16 | 3 | 0.01 | 1 | 0.01 | +http://www.privacyaware.org |
| 17 | 3 | 0.01 | 3 | 0.02 | Windows XP |
| 18 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 19 | 3 | 0.01 | 3 | 0.02 | Windows 3.1 |
| 20 | 3 | 0.01 | 3 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 21 | 2 | 0.01 | 2 | 0.02 | Windows 2000 |
| 22 | 2 | 0.01 | 2 | 0.02 | Windows CE |
| 23 | 2 | 0.01 | 2 | 0.02 | Windows ME |
| 24 | 2 | 0.01 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 25 | 2 | 0.01 | 1 | 0.01 | +http://duckduckgo.com |
| 26 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
| 27 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 28 | 1 | 0.00 | 1 | 0.01 | X11 |
