| Used Operating Systems |
| 1 | 21274 | 58.29 | 420 | 6.14 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4661 | 12.77 | 165 | 2.41 | +http://yandex.com/bots |
| 3 | 3556 | 9.74 | 2128 | 31.12 | Windows NT |
| 4 | 3333 | 9.13 | 2957 | 43.24 | +http://www.baidu.com/search/spider.html |
| 5 | 934 | 2.56 | 55 | 0.80 | Windows 98 |
| 6 | 655 | 1.79 | 305 | 4.46 | +http://www.bing.com/bingbot.htm |
| 7 | 480 | 1.32 | 161 | 2.35 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 454 | 1.24 | 300 | 4.39 | +http://www.linkdex.com/bots/ |
| 9 | 397 | 1.09 | 101 | 1.48 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 351 | 0.96 | 120 | 1.75 | +http://www.google.com/bot.html |
| 11 | 58 | 0.16 | 2 | 0.03 | BlackBerry |
| 12 | 56 | 0.15 | 34 | 0.50 | +http://ahrefs.com/robot/ |
| 13 | 40 | 0.11 | 4 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 14 | 21 | 0.06 | 12 | 0.18 | X11 |
| 15 | 20 | 0.05 | 12 | 0.18 | +http://wmaid.com/explore/ |
| 16 | 20 | 0.05 | 2 | 0.03 | +http://endb-consolidated.aihit.com/ |
| 17 | 18 | 0.05 | 8 | 0.12 | Android 2.3.5 |
| 18 | 18 | 0.05 | 2 | 0.03 | +http://siteexplorer.info/ |
| 19 | 16 | 0.04 | 8 | 0.12 | +http://www.exabot.com/go/robot |
| 20 | 16 | 0.04 | 3 | 0.04 | +http://fulltext.sblog.cz/ |
| 21 | 14 | 0.04 | 5 | 0.07 | http://help.yahoo.com/help/us/ysearch/sl... |
| 22 | 12 | 0.03 | 1 | 0.01 | http://www.lipperhey.com/ |
| 23 | 10 | 0.03 | 0 | 0.00 | Linux [unknown version] |
| 24 | 8 | 0.02 | 4 | 0.06 | +http://botw.org |
| 25 | 7 | 0.02 | 4 | 0.06 | +http://www.easou.com/search/spider.html |
| 26 | 6 | 0.02 | 2 | 0.03 | +http://getdownload.ws |
| 27 | 6 | 0.02 | 3 | 0.04 | http://crawler.sistrix.net/ |
| 28 | 6 | 0.02 | 2 | 0.03 | +http://inload.in |
| 29 | 6 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 30 | 6 | 0.02 | 3 | 0.04 | +http://www.meanpath.com/meanpathbot.htm... |
| 31 | 5 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 32 | 4 | 0.01 | 2 | 0.03 | +http://help.coccoc.com/ |
| 33 | 4 | 0.01 | 2 | 0.03 | +http://www.idmarch.org/bot.html |
| 34 | 3 | 0.01 | 3 | 0.04 | +http://pmoz.info/doc/botinfo.htm |
| 35 | 3 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 36 | 3 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 37 | 3 | 0.01 | 3 | 0.04 | Windows XP |
| 38 | 3 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 39 | 3 | 0.01 | 1 | 0.01 | +http://freedlf.com/ |
| 40 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 41 | 2 | 0.01 | 2 | 0.03 | +http://tweetmeme.com/ |
