| Used Operating Systems |
| 1 | 6055 | 21.69 | 3510 | 41.06 | +http://ahrefs.com/robot/ |
| 2 | 5029 | 18.02 | 3781 | 44.23 | +http://www.baidu.com/search/spider.html |
| 3 | 3587 | 12.85 | 38 | 0.44 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 3200 | 11.46 | 1 | 0.01 | +http://megaindex.com/crawler |
| 5 | 3065 | 10.98 | 43 | 0.50 | http://mj12bot.com/ |
| 6 | 3004 | 10.76 | 3 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 7 | 1291 | 4.63 | 305 | 3.57 | Windows NT |
| 8 | 756 | 2.71 | 281 | 3.29 | +http://www.google.com/bot.html |
| 9 | 580 | 2.08 | 158 | 1.85 | +http://www.linkdex.com/bots/ |
| 10 | 580 | 2.08 | 278 | 3.25 | +http://www.bing.com/bingbot.htm |
| 11 | 393 | 1.41 | 102 | 1.19 | +http://yandex.com/bots |
| 12 | 250 | 0.90 | 1 | 0.01 | Linux i686 [unknown version] |
| 13 | 50 | 0.18 | 21 | 0.25 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 13 | 0.05 | 1 | 0.01 | https://www.dataprovider.com/spider/ |
| 15 | 12 | 0.04 | 5 | 0.06 | +http://www.exabot.com/go/robot |
| 16 | 9 | 0.03 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 17 | 7 | 0.03 | 1 | 0.01 | crawler@mixrank.com |
| 18 | 6 | 0.02 | 2 | 0.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 19 | 5 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 20 | 4 | 0.01 | 4 | 0.05 | Windows 95 |
| 21 | 3 | 0.01 | 3 | 0.04 | Windows 98 |
| 22 | 2 | 0.01 | 2 | 0.02 | Windows 2000 |
| 23 | 2 | 0.01 | 2 | 0.02 | Windows XP |
| 24 | 2 | 0.01 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 25 | 2 | 0.01 | 2 | 0.02 | Windows 3.1 |
| 26 | 2 | 0.01 | 1 | 0.01 | +http://www.uptime.com/uptimebot |
| 27 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 28 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
