| Used Operating Systems |
| 1 | 39171 | 84.31 | 323 | 11.48 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 3565 | 7.67 | 1426 | 50.68 | Windows NT |
| 3 | 1579 | 3.40 | 238 | 8.46 | +http://www.linkdex.com/bots/ |
| 4 | 839 | 1.81 | 431 | 15.32 | +http://www.baidu.com/search/spider.html |
| 5 | 402 | 0.87 | 2 | 0.07 | +http://megaindex.com/crawler |
| 6 | 292 | 0.63 | 139 | 4.94 | +http://www.google.com/bot.html |
| 7 | 226 | 0.49 | 51 | 1.81 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 128 | 0.28 | 63 | 2.24 | +http://yandex.com/bots |
| 9 | 54 | 0.12 | 22 | 0.78 | +http://www.bing.com/bingbot.htm |
| 10 | 33 | 0.07 | 28 | 1.00 | Linux i686 [unknown version] |
| 11 | 32 | 0.07 | 16 | 0.57 | Windows 95 |
| 12 | 24 | 0.05 | 18 | 0.64 | X11 |
| 13 | 15 | 0.03 | 3 | 0.11 | +http://www.semrush.com/bot.html |
| 14 | 13 | 0.03 | 6 | 0.21 | Windows 98 |
| 15 | 12 | 0.03 | 12 | 0.43 | Linux [unknown version] |
| 16 | 12 | 0.03 | 6 | 0.21 | Windows 3.1 |
| 17 | 12 | 0.03 | 7 | 0.25 | MSIE 5.5; Windows NT 5.0 |
| 18 | 12 | 0.03 | 6 | 0.21 | +http://duckduckgo.com |
| 19 | 10 | 0.02 | 4 | 0.14 | Windows XP |
| 20 | 8 | 0.02 | 5 | 0.18 | J2ME/MIDP |
| 21 | 4 | 0.01 | 2 | 0.07 | Windows 2000 |
| 22 | 4 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 23 | 4 | 0.01 | 2 | 0.07 | Windows ME |
| 24 | 4 | 0.01 | 2 | 0.07 | MSIE 5.5; Windows NT 4.0 |
| 25 | 2 | 0.00 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 26 | 2 | 0.00 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 27 | 2 | 0.00 | 2 | 0.07 | +info@netcraft.com |
