| Used Operating Systems |
| 1 | 19175 | 39.43 | 105 | 1.96 | +http://ahrefs.com/robot/ |
| 2 | 13542 | 27.85 | 106 | 1.98 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 6424 | 13.21 | 3 | 0.06 | +http://megaindex.com/crawler |
| 4 | 3464 | 7.12 | 2798 | 52.20 | +http://www.baidu.com/search/spider.html |
| 5 | 3057 | 6.29 | 1147 | 21.40 | Windows NT |
| 6 | 821 | 1.69 | 189 | 3.53 | +http://www.bing.com/bingbot.htm |
| 7 | 549 | 1.13 | 172 | 3.21 | +http://www.linkdex.com/bots/ |
| 8 | 519 | 1.07 | 212 | 3.96 | +http://www.google.com/bot.html |
| 9 | 333 | 0.68 | 199 | 3.71 | +http://www.xovibot.net/ |
| 10 | 132 | 0.27 | 119 | 2.22 | Windows 95 |
| 11 | 108 | 0.22 | 29 | 0.54 | Windows 98 |
| 12 | 104 | 0.21 | 16 | 0.30 | +http://yandex.com/bots |
| 13 | 92 | 0.19 | 44 | 0.82 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 56 | 0.12 | 24 | 0.45 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 30 | 0.06 | 29 | 0.54 | Windows 3.1 |
| 16 | 27 | 0.06 | 27 | 0.50 | MSIE 5.5; Windows NT 4.0 |
| 17 | 25 | 0.05 | 25 | 0.47 | Windows 2000 |
| 18 | 23 | 0.05 | 22 | 0.41 | Windows CE |
| 19 | 23 | 0.05 | 22 | 0.41 | MSIE 5.5; Windows NT 5.0 |
| 20 | 21 | 0.04 | 20 | 0.37 | Windows ME |
| 21 | 21 | 0.04 | 21 | 0.39 | ) - BrowseX (2.0.0 Windows |
| 22 | 20 | 0.04 | 3 | 0.06 | Windows XP |
| 23 | 17 | 0.03 | 9 | 0.17 | +http://www.exabot.com/go/robot |
| 24 | 13 | 0.03 | 12 | 0.22 | Auto; Windows |
| 25 | 12 | 0.02 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 26 | 8 | 0.02 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 27 | 6 | 0.01 | 3 | 0.06 | +http://fulltext.sblog.cz/ |
| 28 | 4 | 0.01 | 2 | 0.04 | +http://www.meanpath.com/meanpathbot.htm... |
| 29 | 3 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 30 | 2 | 0.00 | 1 | 0.02 | +info@netcraft.com |
| 31 | 1 | 0.00 | 0 | 0.00 | Linux i686 [unknown version] |
