| Used Operating Systems |
| 1 | 9162 | 50.89 | 12 | 0.85 | +http://ahrefs.com/robot/ |
| 2 | 4952 | 27.50 | 550 | 39.09 | Windows NT |
| 3 | 1308 | 7.27 | 293 | 20.82 | +http://www.google.com/bot.html |
| 4 | 1005 | 5.58 | 200 | 14.21 | +http://yandex.com/bots |
| 5 | 463 | 2.57 | 50 | 3.55 | +http://www.bing.com/bingbot.htm |
| 6 | 449 | 2.49 | 80 | 5.69 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 242 | 1.34 | 49 | 3.48 | ezooms.bot@gmail.com |
| 8 | 225 | 1.25 | 67 | 4.76 | +http://www.baidu.com/search/spider.html |
| 9 | 72 | 0.40 | 26 | 1.85 | Windows 98 |
| 10 | 36 | 0.20 | 30 | 2.13 | Windows 95 |
| 11 | 22 | 0.12 | 10 | 0.71 | http://www.search17.com/bot.php |
| 12 | 18 | 0.10 | 2 | 0.14 | Linux i686 [unknown version] |
| 13 | 11 | 0.06 | 10 | 0.71 | Windows 3.1 |
| 14 | 8 | 0.04 | 4 | 0.28 | Windows XP |
| 15 | 8 | 0.04 | 8 | 0.57 | MSIE 5.5; Windows NT 5.0 |
| 16 | 8 | 0.04 | 2 | 0.14 | +http://domains.checkparams.com/ |
| 17 | 7 | 0.04 | 7 | 0.50 | Windows CE |
| 18 | 4 | 0.02 | 4 | 0.28 | MSIE 5.5; Windows NT 4.0 |
| 19 | 3 | 0.02 | 2 | 0.14 | Windows ME |
| 20 | 1 | 0.01 | 1 | 0.07 | Windows 2000 |
