| Used Operating Systems |
| 1 | 23077 | 37.12 | 217 | 1.32 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 15022 | 24.16 | 10993 | 66.66 | +http://ahrefs.com/robot/ |
| 3 | 14527 | 23.36 | 895 | 5.43 | Windows NT |
| 4 | 4618 | 7.43 | 3626 | 21.99 | +http://www.baidu.com/search/spider.html |
| 5 | 1961 | 3.15 | 6 | 0.04 | +http://www.warebay.com/bot.html |
| 6 | 1315 | 2.11 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 7 | 423 | 0.68 | 184 | 1.12 | +http://www.bing.com/bingbot.htm |
| 8 | 307 | 0.49 | 115 | 0.70 | +http://www.google.com/bot.html |
| 9 | 166 | 0.27 | 45 | 0.27 | +http://yandex.com/bots |
| 10 | 141 | 0.23 | 58 | 0.35 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 99 | 0.16 | 63 | 0.38 | Windows 95 |
| 12 | 77 | 0.12 | 30 | 0.18 | +http://www.linkdex.com/bots/ |
| 13 | 66 | 0.11 | 29 | 0.18 | http://www.opensiteexplorer.org/dotbot, ... |
| 14 | 59 | 0.09 | 18 | 0.11 | Windows 98 |
| 15 | 56 | 0.09 | 52 | 0.32 | +http://www.xovibot.net/ |
| 16 | 45 | 0.07 | 16 | 0.10 | +http://www.exabot.com/go/robot |
| 17 | 34 | 0.05 | 34 | 0.21 | +http://www.uptime.com/uptimebot |
| 18 | 22 | 0.04 | 10 | 0.06 | Windows XP |
| 19 | 22 | 0.04 | 10 | 0.06 | Windows 3.1 |
| 20 | 22 | 0.04 | 3 | 0.02 | +http://www.semrush.com/bot.html |
| 21 | 20 | 0.03 | 15 | 0.09 | MSIE 5.5; Windows NT 5.0 |
| 22 | 18 | 0.03 | 12 | 0.07 | Windows CE |
| 23 | 15 | 0.02 | 14 | 0.08 | Auto; Windows |
| 24 | 12 | 0.02 | 12 | 0.07 | Windows 2000 |
| 25 | 12 | 0.02 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 26 | 10 | 0.02 | 9 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 27 | 8 | 0.01 | 7 | 0.04 | Windows ME |
| 28 | 6 | 0.01 | 6 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 29 | 4 | 0.01 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 30 | 3 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 31 | 2 | 0.00 | 1 | 0.01 | https://nmap.org/book/nse.html |
| 32 | 2 | 0.00 | 1 | 0.01 | http://www.botje.com/plukkie.htm |
| 33 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 34 | 1 | 0.00 | 1 | 0.01 | +https://gimmeusa.com/crawler.html |
| 35 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 36 | 1 | 0.00 | 1 | 0.01 | Linux i586 [unknown version] |
