| Used Operating Systems |
| 1 | 21548 | 36.99 | 139 | 0.81 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 14507 | 24.91 | 10982 | 64.24 | +http://ahrefs.com/robot/ |
| 3 | 9712 | 16.67 | 1078 | 6.31 | Windows NT |
| 4 | 5482 | 9.41 | 3908 | 22.86 | +http://www.baidu.com/search/spider.html |
| 5 | 3271 | 5.62 | 1 | 0.01 | +http://megaindex.com/crawler |
| 6 | 1463 | 2.51 | 184 | 1.08 | +http://www.bing.com/bingbot.htm |
| 7 | 816 | 1.40 | 210 | 1.23 | +http://www.linkdex.com/bots/ |
| 8 | 443 | 0.76 | 174 | 1.02 | +http://www.google.com/bot.html |
| 9 | 283 | 0.49 | 137 | 0.80 | +http://yandex.com/bots |
| 10 | 230 | 0.39 | 104 | 0.61 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 81 | 0.14 | 7 | 0.04 | Windows 95 |
| 12 | 70 | 0.12 | 67 | 0.39 | +http://www.xovibot.net/ |
| 13 | 67 | 0.12 | 37 | 0.22 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 41 | 0.07 | 5 | 0.03 | Windows ME |
| 15 | 37 | 0.06 | 3 | 0.02 | +http://filterdb.iss.net/crawler/ |
| 16 | 33 | 0.06 | 19 | 0.11 | +http://www.exabot.com/go/robot |
| 17 | 31 | 0.05 | 1 | 0.01 | Windows 98 |
| 18 | 24 | 0.04 | 5 | 0.03 | Windows XP |
| 19 | 21 | 0.04 | 19 | 0.11 | +http://www.uptime.com/uptimebot |
| 20 | 20 | 0.03 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 21 | 20 | 0.03 | 2 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 22 | 12 | 0.02 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 23 | 10 | 0.02 | 1 | 0.01 | Windows 3.1 |
| 24 | 7 | 0.01 | 1 | 0.01 | crawler@mixrank.com |
| 25 | 7 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 26 | 3 | 0.01 | 2 | 0.01 | Android 2.3.5 |
| 27 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 28 | 2 | 0.00 | 1 | 0.01 | X11 |
| 29 | 2 | 0.00 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 30 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
