| Used Operating Systems |
| 1 | 65258 | 52.58 | 435 | 4.27 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 30871 | 24.87 | 3435 | 33.69 | Windows NT |
| 3 | 15741 | 12.68 | 4086 | 40.08 | +http://ahrefs.com/robot/ |
| 4 | 5442 | 4.38 | 7 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 5 | 1326 | 1.07 | 356 | 3.49 | +http://www.bing.com/bingbot.htm |
| 6 | 1259 | 1.01 | 564 | 5.53 | +http://www.google.com/bot.html |
| 7 | 987 | 0.80 | 736 | 7.22 | +http://www.baidu.com/search/spider.html |
| 8 | 918 | 0.74 | 188 | 1.84 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 636 | 0.51 | 116 | 1.14 | +http://www.linkdex.com/bots/ |
| 10 | 583 | 0.47 | 1 | 0.01 | +http://www.seokicks.de/robot.html |
| 11 | 413 | 0.33 | 94 | 0.92 | +http://yandex.com/bots |
| 12 | 322 | 0.26 | 93 | 0.91 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 140 | 0.11 | 2 | 0.02 | +http://webmeup-crawler.com/ |
| 14 | 54 | 0.04 | 6 | 0.06 | Windows CE |
| 15 | 30 | 0.02 | 15 | 0.15 | +http://fulltext.sblog.cz/ |
| 16 | 29 | 0.02 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 17 | 23 | 0.02 | 12 | 0.12 | +http://www.exabot.com/go/robot |
| 18 | 18 | 0.01 | 18 | 0.18 | +http://www.xovibot.net/ |
| 19 | 12 | 0.01 | 6 | 0.06 | http://www.botje.com/plukkie.htm |
| 20 | 10 | 0.01 | 3 | 0.03 | Windows 98 |
| 21 | 10 | 0.01 | 5 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 22 | 6 | 0.00 | 0 | 0.00 | Solaris 9.x |
| 23 | 4 | 0.00 | 2 | 0.02 | Windows 95 |
| 24 | 4 | 0.00 | 2 | 0.02 | +http://duckduckgo.com |
| 25 | 3 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 2 | 0.00 | 2 | 0.02 | OpenBSD [unknown version] |
| 27 | 2 | 0.00 | 2 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 28 | 2 | 0.00 | 2 | 0.02 | +info@netcraft.com |
| 29 | 2 | 0.00 | 2 | 0.02 | Windows 3.1 |
| 30 | 2 | 0.00 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 31 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
| 32 | 1 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 33 | 1 | 0.00 | 1 | 0.01 | X11 |
