| Used Operating Systems |
| 1 | 5432 | 38.62 | 3041 | 63.45 | Windows NT |
| 2 | 4359 | 30.99 | 76 | 1.59 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 1437 | 10.22 | 224 | 4.67 | +http://www.google.com/bot.html |
| 4 | 732 | 5.20 | 262 | 5.47 | +http://www.bing.com/bingbot.htm |
| 5 | 445 | 3.16 | 277 | 5.78 | +http://www.baidu.com/search/spider.html |
| 6 | 383 | 2.72 | 273 | 5.70 | +http://ahrefs.com/robot/ |
| 7 | 220 | 1.56 | 106 | 2.21 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 172 | 1.22 | 56 | 1.17 | +http://www.linkdex.com/bots/ |
| 9 | 138 | 0.98 | 135 | 2.82 | Windows 95 |
| 10 | 129 | 0.92 | 27 | 0.56 | +http://yandex.com/bots |
| 11 | 85 | 0.60 | 41 | 0.86 | Windows 98 |
| 12 | 44 | 0.31 | 17 | 0.35 | +http://www.semrush.com/bot.html |
| 13 | 38 | 0.27 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 14 | 37 | 0.26 | 10 | 0.21 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 35 | 0.25 | 1 | 0.02 | +http://www.linkpad.ru |
| 16 | 32 | 0.23 | 30 | 0.63 | Auto; Windows |
| 17 | 29 | 0.21 | 29 | 0.61 | MSIE 5.5; Windows NT 4.0 |
| 18 | 28 | 0.20 | 7 | 0.15 | Windows XP |
| 19 | 28 | 0.20 | 28 | 0.58 | Windows 3.1 |
| 20 | 24 | 0.17 | 24 | 0.50 | Windows ME |
| 21 | 23 | 0.16 | 23 | 0.48 | Windows CE |
| 22 | 21 | 0.15 | 21 | 0.44 | Windows 2000 |
| 23 | 21 | 0.15 | 1 | 0.02 | +http://www.seokicks.de/robot.html |
| 24 | 20 | 0.14 | 20 | 0.42 | MSIE 5.5; Windows NT 5.0 |
| 25 | 19 | 0.14 | 1 | 0.02 | http://www.lipperhey.com/ |
| 26 | 19 | 0.14 | 2 | 0.04 | http://www.bing.com/bingbot.htm |
| 27 | 18 | 0.13 | 18 | 0.38 | ) - BrowseX (2.0.0 Windows |
| 28 | 17 | 0.12 | 1 | 0.02 | http://www.searchmetrics.com/en/searchme... |
| 29 | 17 | 0.12 | 10 | 0.21 | +http://www.exabot.com/go/robot |
| 30 | 13 | 0.09 | 1 | 0.02 | +http://fulltext.sblog.cz/ |
| 31 | 10 | 0.07 | 5 | 0.10 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 6 | 0.04 | 1 | 0.02 | +http://getdownload.ws |
| 33 | 6 | 0.04 | 3 | 0.06 | +http://duckduckgo.com |
| 34 | 5 | 0.04 | 5 | 0.10 | Linux i686 [unknown version] |
| 35 | 4 | 0.03 | 4 | 0.08 | +http://www.domaintuno.com/robot |
| 36 | 4 | 0.03 | 3 | 0.06 | X11 |
| 37 | 4 | 0.03 | 1 | 0.02 | +http://get4dl.net |
| 38 | 2 | 0.01 | 1 | 0.02 | Android 2.3.5 |
| 39 | 2 | 0.01 | 2 | 0.04 | +info@netcraft.com |
| 40 | 2 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 41 | 2 | 0.01 | 1 | 0.02 | +http://advbot.org/bot.html |
| 42 | 1 | 0.01 | 1 | 0.02 | Linux [unknown version] |
| 43 | 1 | 0.01 | 1 | 0.02 | Macintosh |
| 44 | 1 | 0.01 | 1 | 0.02 | +https://www.domaintuno.com/robot |
