| Used Operating Systems |
| 1 | 6093 | 37.92 | 129 | 2.99 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5834 | 36.31 | 2561 | 59.31 | Windows NT |
| 3 | 1056 | 6.57 | 226 | 5.23 | +http://yandex.com/bots |
| 4 | 884 | 5.50 | 437 | 10.12 | +http://www.google.com/bot.html |
| 5 | 832 | 5.18 | 497 | 11.51 | +http://www.bing.com/bingbot.htm |
| 6 | 275 | 1.71 | 8 | 0.19 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 247 | 1.54 | 141 | 3.27 | +http://www.baidu.com/search/spider.html |
| 8 | 198 | 1.23 | 72 | 1.67 | +http://www.linkdex.com/bots/ |
| 9 | 140 | 0.87 | 50 | 1.16 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 72 | 0.45 | 4 | 0.09 | http://crawler.sistrix.net/ |
| 11 | 60 | 0.37 | 20 | 0.46 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 54 | 0.34 | 3 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 13 | 41 | 0.26 | 30 | 0.69 | +http://www.easou.com/search/spider.html |
| 14 | 40 | 0.25 | 2 | 0.05 | +http://filterdb.iss.net/crawler/ |
| 15 | 39 | 0.24 | 35 | 0.81 | Windows 95 |
| 16 | 23 | 0.14 | 13 | 0.30 | +http://ahrefs.com/robot/ |
| 17 | 21 | 0.13 | 1 | 0.02 | +http://www.seokicks.de/robot.html |
| 18 | 21 | 0.13 | 7 | 0.16 | Windows 98 |
| 19 | 20 | 0.12 | 7 | 0.16 | +http://www.exabot.com/go/robot |
| 20 | 16 | 0.10 | 5 | 0.12 | Windows XP |
| 21 | 11 | 0.07 | 10 | 0.23 | Windows 2000 |
| 22 | 11 | 0.07 | 11 | 0.25 | MSIE 5.5; Windows NT 5.0 |
| 23 | 10 | 0.06 | 7 | 0.16 | Android 2.3.5 |
| 24 | 9 | 0.06 | 5 | 0.12 | Windows 3.1 |
| 25 | 9 | 0.06 | 7 | 0.16 | X11 |
| 26 | 7 | 0.04 | 7 | 0.16 | Windows CE |
| 27 | 7 | 0.04 | 6 | 0.14 | Windows ME |
| 28 | 6 | 0.04 | 2 | 0.05 | +http://getdownload.ws |
| 29 | 6 | 0.04 | 3 | 0.07 | +http://wmaid.com/explore/ |
| 30 | 5 | 0.03 | 1 | 0.02 | +http://tryload.in |
| 31 | 4 | 0.02 | 1 | 0.02 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 32 | 4 | 0.02 | 2 | 0.05 | +http://fulltext.sblog.cz/ |
| 33 | 3 | 0.02 | 1 | 0.02 | +http://overx50.com/ |
| 34 | 2 | 0.01 | 2 | 0.05 | Intel Mac OS X 10.4 |
| 35 | 2 | 0.01 | 0 | 0.00 | +http://www.xovibot.net/ |
| 36 | 2 | 0.01 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 37 | 2 | 0.01 | 2 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 38 | 1 | 0.01 | 1 | 0.02 | Intel Mac OS X |
| 39 | 1 | 0.01 | 1 | 0.02 | +info@netcraft.com |
