| Used Operating Systems |
| 1 | 2492 | 30.75 | 38 | 2.79 | http://mj12bot.com/ |
| 2 | 1997 | 24.65 | 565 | 41.45 | +http://www.baidu.com/search/spider.html |
| 3 | 1792 | 22.12 | 25 | 1.83 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 740 | 9.13 | 243 | 17.83 | Windows NT |
| 5 | 276 | 3.41 | 231 | 16.95 | +http://ahrefs.com/robot/ |
| 6 | 230 | 2.84 | 73 | 5.36 | +http://www.linkdex.com/bots/ |
| 7 | 202 | 2.49 | 39 | 2.86 | +http://yandex.com/bots |
| 8 | 135 | 1.67 | 38 | 2.79 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 135 | 1.67 | 59 | 4.33 | +http://www.google.com/bot.html |
| 10 | 38 | 0.47 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 11 | 18 | 0.22 | 16 | 1.17 | Windows 95 |
| 12 | 12 | 0.15 | 6 | 0.44 | +http://help.coccoc.com/searchengine |
| 13 | 8 | 0.10 | 7 | 0.51 | ) - BrowseX (2.0.0 Windows |
| 14 | 8 | 0.10 | 5 | 0.37 | Windows 98 |
| 15 | 6 | 0.07 | 6 | 0.44 | Windows 3.1 |
| 16 | 4 | 0.05 | 4 | 0.29 | Auto; Windows |
| 17 | 3 | 0.04 | 3 | 0.22 | MSIE 5.5; Windows NT 4.0 |
| 18 | 2 | 0.02 | 2 | 0.15 | Windows 2000 |
| 19 | 2 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 20 | 2 | 0.02 | 2 | 0.15 | MSIE 5.5; Windows NT 5.0 |
| 21 | 1 | 0.01 | 1 | 0.07 | Windows CE |
