| Used Operating Systems |
| 1 | 9441 | 56.17 | 4017 | 77.89 | Windows NT |
| 2 | 4168 | 24.80 | 60 | 1.16 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 798 | 4.75 | 50 | 0.97 | Windows 98 |
| 4 | 622 | 3.70 | 296 | 5.74 | +http://www.bing.com/bingbot.htm |
| 5 | 559 | 3.33 | 258 | 5.00 | +http://www.google.com/bot.html |
| 6 | 196 | 1.17 | 61 | 1.18 | +http://www.linkdex.com/bots/ |
| 7 | 179 | 1.06 | 94 | 1.82 | +http://www.baidu.com/search/spider.html |
| 8 | 151 | 0.90 | 32 | 0.62 | +http://yandex.com/bots |
| 9 | 107 | 0.64 | 41 | 0.80 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 89 | 0.53 | 59 | 1.14 | Windows 95 |
| 11 | 54 | 0.32 | 3 | 0.06 | http://crawler.sistrix.net/ |
| 12 | 44 | 0.26 | 18 | 0.35 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 36 | 0.21 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 14 | 35 | 0.21 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 15 | 31 | 0.18 | 1 | 0.02 | BlackBerry |
| 16 | 30 | 0.18 | 22 | 0.43 | MSIE 5.5; Windows NT 5.0 |
| 17 | 23 | 0.14 | 4 | 0.08 | Windows XP |
| 18 | 22 | 0.13 | 2 | 0.04 | +http://www.profound.net/urlappendbot.ht... |
| 19 | 22 | 0.13 | 9 | 0.17 | X11 |
| 20 | 20 | 0.12 | 14 | 0.27 | +http://ahrefs.com/robot/ |
| 21 | 20 | 0.12 | 3 | 0.06 | http://help.yahoo.com/help/us/ysearch/sl... |
| 22 | 20 | 0.12 | 15 | 0.29 | Windows ME |
| 23 | 18 | 0.11 | 12 | 0.23 | Android 2.3.5 |
| 24 | 14 | 0.08 | 11 | 0.21 | Windows 2000 |
| 25 | 14 | 0.08 | 13 | 0.25 | MSIE 5.5; Windows NT 4.0 |
| 26 | 14 | 0.08 | 8 | 0.16 | +http://www.exabot.com/go/robot |
| 27 | 13 | 0.08 | 10 | 0.19 | +http://www.easou.com/search/spider.html |
| 28 | 9 | 0.05 | 9 | 0.17 | Windows CE |
| 29 | 9 | 0.05 | 8 | 0.16 | Windows 3.1 |
| 30 | 8 | 0.05 | 4 | 0.08 | +http://fulltext.sblog.cz/ |
| 31 | 7 | 0.04 | 7 | 0.14 | +http://wmaid.com/explore/ |
| 32 | 6 | 0.04 | 1 | 0.02 | +http://endb-consolidated.aihit.com/ |
| 33 | 5 | 0.03 | 1 | 0.02 | +http://u12files.com/ |
| 34 | 4 | 0.02 | 4 | 0.08 | Linux i686 [unknown version] |
| 35 | 4 | 0.02 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 36 | 3 | 0.02 | 1 | 0.02 | +http://getdownload.ws |
| 37 | 3 | 0.02 | 1 | 0.02 | +http://freedlf.com/ |
| 38 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 39 | 2 | 0.01 | 1 | 0.02 | +http://www.semrush.com/bot.html |
| 40 | 2 | 0.01 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 41 | 1 | 0.01 | 0 | 0.00 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 42 | 1 | 0.01 | 1 | 0.02 | Auto; Windows |
| 43 | 1 | 0.01 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 44 | 1 | 0.01 | 1 | 0.02 | Linux [unknown version] |
| 45 | 1 | 0.01 | 1 | 0.02 | +info@netcraft.com |
