| Used Operating Systems |
| 1 | 12508 | 57.51 | 152 | 3.34 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5439 | 25.01 | 2593 | 56.98 | Windows NT |
| 3 | 1244 | 5.72 | 750 | 16.48 | +http://www.baidu.com/search/spider.html |
| 4 | 888 | 4.08 | 108 | 2.37 | +http://yandex.com/bots |
| 5 | 489 | 2.25 | 282 | 6.20 | +http://www.google.com/bot.html |
| 6 | 240 | 1.10 | 119 | 2.61 | +http://www.bing.com/bingbot.htm |
| 7 | 153 | 0.70 | 125 | 2.75 | +http://www.linkdex.com/bots/ |
| 8 | 90 | 0.41 | 20 | 0.44 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 81 | 0.37 | 69 | 1.52 | Windows 95 |
| 10 | 79 | 0.36 | 46 | 1.01 | Linux i686 [unknown version] |
| 11 | 68 | 0.31 | 25 | 0.55 | Windows 98 |
| 12 | 30 | 0.14 | 24 | 0.53 | Windows 3.1 |
| 13 | 27 | 0.12 | 18 | 0.40 | Windows CE |
| 14 | 27 | 0.12 | 23 | 0.51 | Windows 2000 |
| 15 | 26 | 0.12 | 10 | 0.22 | X11 |
| 16 | 24 | 0.11 | 9 | 0.20 | +http://help.coccoc.com/ |
| 17 | 23 | 0.11 | 10 | 0.22 | Win32 |
| 18 | 23 | 0.11 | 17 | 0.37 | MSIE 5.5; Windows NT 5.0 |
| 19 | 22 | 0.10 | 17 | 0.37 | Windows ME |
| 20 | 21 | 0.10 | 21 | 0.46 | MSIE 5.5; Windows NT 4.0 |
| 21 | 20 | 0.09 | 10 | 0.22 | +http://www.exabot.com/go/robot |
| 22 | 16 | 0.07 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 23 | 14 | 0.06 | 7 | 0.15 | http://www.searchmetrics.com/en/searchme... |
| 24 | 14 | 0.06 | 4 | 0.09 | +http://webmeup-crawler.com/ |
| 25 | 13 | 0.06 | 1 | 0.02 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 26 | 13 | 0.06 | 6 | 0.13 | +http://ahrefs.com/robot/ |
| 27 | 13 | 0.06 | 1 | 0.02 | +http://www.pagespeed.de |
| 28 | 12 | 0.06 | 6 | 0.13 | +http://duckduckgo.com |
| 29 | 11 | 0.05 | 8 | 0.18 | Linux [unknown version] |
| 30 | 11 | 0.05 | 9 | 0.20 | ) - BrowseX (2.0.0 Windows |
| 31 | 10 | 0.05 | 2 | 0.04 | Windows XP |
| 32 | 10 | 0.05 | 10 | 0.22 | Linux i586 [unknown version] |
| 33 | 10 | 0.05 | 5 | 0.11 | +http://www.meanpath.com/meanpathbot.htm... |
| 34 | 9 | 0.04 | 4 | 0.09 | http://help.yahoo.com/help/us/ysearch/sl... |
| 35 | 9 | 0.04 | 9 | 0.20 | +https://www.megaindex.ru/?tab=linkAnaly... |
| 36 | 9 | 0.04 | 1 | 0.02 | +http://fulltext.sblog.cz/ |
| 37 | 6 | 0.03 | 6 | 0.13 | Auto; Windows |
| 38 | 6 | 0.03 | 2 | 0.04 | +http://www.xovibot.net/ |
| 39 | 4 | 0.02 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 40 | 4 | 0.02 | 2 | 0.04 | http://www.botje.com/plukkie.htm |
| 41 | 4 | 0.02 | 2 | 0.04 | +http://nlp.fi.muni.cz/projects/biwec/ |
| 42 | 4 | 0.02 | 2 | 0.04 | +http://gimme60.com |
| 43 | 4 | 0.02 | 4 | 0.09 | +http://domainsigma.com/robot |
| 44 | 3 | 0.01 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 45 | 3 | 0.01 | 3 | 0.07 | +http://megaindex.com/crawler |
| 46 | 2 | 0.01 | 1 | 0.02 | +http://www.proximic.com/info/spider.php |
| 47 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 48 | 2 | 0.01 | 1 | 0.02 | +http://www.linkpad.ru |
| 49 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 50 | 2 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 51 | 2 | 0.01 | 1 | 0.02 | +http://www.findxbot.com |
| 52 | 1 | 0.00 | 0 | 0.00 | Android |
| 53 | 1 | 0.00 | 1 | 0.02 | +http://advbot.org/bot.html |
| 54 | 1 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 55 | 1 | 0.00 | 0 | 0.00 | Android 2.3.5 |
