| Used Operating Systems |
| 1 | 56540 | 64.79 | 374 | 3.56 | +http://www.semrush.com/bot.html |
| 2 | 16967 | 19.44 | 8838 | 84.09 | +http://ahrefs.com/robot/ |
| 3 | 8071 | 9.25 | 142 | 1.35 | http://mj12bot.com/ |
| 4 | 3112 | 3.57 | 56 | 0.53 | http://www.opensiteexplorer.org/dotbot, ... |
| 5 | 708 | 0.81 | 139 | 1.32 | +http://yandex.com/bots |
| 6 | 586 | 0.67 | 402 | 3.82 | +http://www.bing.com/bingbot.htm |
| 7 | 380 | 0.44 | 124 | 1.18 | +http://www.google.com/bot.html |
| 8 | 309 | 0.35 | 76 | 0.72 | +http://www.linkdex.com/bots/ |
| 9 | 261 | 0.30 | 136 | 1.29 | Windows NT |
| 10 | 205 | 0.23 | 195 | 1.86 | +http://www.baidu.com/search/spider.html |
| 11 | 40 | 0.05 | 4 | 0.04 | +http://siteexplorer.info/Backlink-Check... |
| 12 | 35 | 0.04 | 14 | 0.13 | +http://www.exabot.com/go/robot |
| 13 | 17 | 0.02 | 1 | 0.01 | X11 |
| 14 | 9 | 0.01 | 3 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 15 | 8 | 0.01 | 0 | 0.00 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 16 | 6 | 0.01 | 0 | 0.00 | Windows CE |
| 17 | 4 | 0.00 | 2 | 0.02 | +info@netcraft.com |
| 18 | 4 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 19 | 3 | 0.00 | 0 | 0.00 | Windows 95 |
| 20 | 2 | 0.00 | 2 | 0.02 | +http://www.uptime.com/uptimebot |
| 21 | 2 | 0.00 | 0 | 0.00 | Windows 98 |
| 22 | 1 | 0.00 | 0 | 0.00 | Windows CE; Trident/5.1 |
| 23 | 1 | 0.00 | 1 | 0.01 | UNIX |
| 24 | 1 | 0.00 | 1 | 0.01 | +http://megaindex.com/crawler |
