| Used Operating Systems |
| 1 | 25439 | 42.45 | 19236 | 83.54 | +http://ahrefs.com/robot/ |
| 2 | 20628 | 34.43 | 568 | 2.47 | +http://yandex.com/bots |
| 3 | 4885 | 8.15 | 506 | 2.20 | Windows NT |
| 4 | 3621 | 6.04 | 1988 | 8.63 | +http://www.baidu.com/search/spider.html |
| 5 | 3139 | 5.24 | 72 | 0.31 | http://mj12bot.com/ |
| 6 | 929 | 1.55 | 235 | 1.02 | +http://www.linkdex.com/bots/ |
| 7 | 660 | 1.10 | 304 | 1.32 | +http://www.bing.com/bingbot.htm |
| 8 | 385 | 0.64 | 67 | 0.29 | +http://www.google.com/bot.html |
| 9 | 72 | 0.12 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 10 | 45 | 0.08 | 1 | 0.00 | http://www.majestic12.co.uk/bot.php?+ |
| 11 | 29 | 0.05 | 12 | 0.05 | Windows 95 |
| 12 | 19 | 0.03 | 7 | 0.03 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 16 | 0.03 | 1 | 0.00 | Windows 98 |
| 14 | 10 | 0.02 | 5 | 0.02 | Windows 2000 |
| 15 | 6 | 0.01 | 4 | 0.02 | Windows CE |
| 16 | 6 | 0.01 | 1 | 0.00 | +http://sur.ly/bot.html |
| 17 | 6 | 0.01 | 4 | 0.02 | Windows ME |
| 18 | 6 | 0.01 | 4 | 0.02 | +info@netcraft.com |
| 19 | 6 | 0.01 | 5 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 20 | 5 | 0.01 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 21 | 4 | 0.01 | 1 | 0.00 | Windows 3.1 |
| 22 | 3 | 0.01 | 0 | 0.00 | Windows XP |
| 23 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
