| Used Operating Systems |
| 1 | 63507 | 47.33 | 46658 | 78.52 | +http://www.baidu.com/search/spider.html |
| 2 | 20441 | 15.24 | 4969 | 8.36 | +http://ahrefs.com/robot/ |
| 3 | 19054 | 14.20 | 308 | 0.52 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 7269 | 5.42 | 2425 | 4.08 | Windows NT |
| 5 | 5513 | 4.11 | 1146 | 1.93 | +http://www.bing.com/bingbot.htm |
| 6 | 5342 | 3.98 | 1725 | 2.90 | +http://www.google.com/bot.html |
| 7 | 3488 | 2.60 | 269 | 0.45 | +http://www.semrush.com/bot.html |
| 8 | 2002 | 1.49 | 4 | 0.01 | http://crawler.sistrix.net/ |
| 9 | 1148 | 0.86 | 192 | 0.32 | +http://www.profound.net/domainappender |
| 10 | 1064 | 0.79 | 2 | 0.00 | +http://webmeup-crawler.com/ |
| 11 | 1055 | 0.79 | 449 | 0.76 | +http://www.linkdex.com/bots/ |
| 12 | 1000 | 0.75 | 1 | 0.00 | +http://OpenLinkProfiler.org/bot |
| 13 | 785 | 0.59 | 475 | 0.80 | +http://www.xovibot.net/ |
| 14 | 519 | 0.39 | 4 | 0.01 | +http://www.warebay.com/bot.html |
| 15 | 497 | 0.37 | 359 | 0.60 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 426 | 0.32 | 83 | 0.14 | +http://yandex.com/bots |
| 17 | 306 | 0.23 | 95 | 0.16 | http://www.opensiteexplorer.org/dotbot, ... |
| 18 | 265 | 0.20 | 72 | 0.12 | +http://www.easou.com/search/spider.html |
| 19 | 143 | 0.11 | 76 | 0.13 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 20 | 102 | 0.08 | 2 | 0.00 | +http://advbot.net/bot.html |
| 21 | 63 | 0.05 | 32 | 0.05 | +http://www.proximic.com/info/spider.php |
| 22 | 34 | 0.03 | 17 | 0.03 | +http://www.exabot.com/go/robot |
| 23 | 28 | 0.02 | 9 | 0.02 | Wayback Machine Live Record; +http://arc... |
| 24 | 23 | 0.02 | 5 | 0.01 | +http://fulltext.sblog.cz/ |
| 25 | 16 | 0.01 | 8 | 0.01 | +http://duckduckgo.com |
| 26 | 11 | 0.01 | 6 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 27 | 9 | 0.01 | 6 | 0.01 | +http://www.bigbozz.com/ |
| 28 | 8 | 0.01 | 4 | 0.01 | +http://help.coccoc.com/ |
| 29 | 8 | 0.01 | 1 | 0.00 | Windows 95 |
| 30 | 7 | 0.01 | 2 | 0.00 | Linux [unknown version] |
| 31 | 4 | 0.00 | 2 | 0.00 | Mail.RU_Bot/Robots; +http://go.mail.ru/h... |
| 32 | 4 | 0.00 | 1 | 0.00 | Windows Phone OS 7.5 |
| 33 | 4 | 0.00 | 1 | 0.00 | +http://isdownload.biz |
| 34 | 4 | 0.00 | 2 | 0.00 | +http://gimme60.com |
| 35 | 4 | 0.00 | 4 | 0.01 | Intel Mac OS X 10.6 |
| 36 | 4 | 0.00 | 2 | 0.00 | +http://www.meanpath.com/meanpathbot.htm... |
| 37 | 2 | 0.00 | 2 | 0.00 | Win32 |
| 38 | 2 | 0.00 | 1 | 0.00 | +http://www.netseer.com/crawler.html; cr... |
| 39 | 2 | 0.00 | 2 | 0.00 | Android 2.3.5 |
| 40 | 2 | 0.00 | 1 | 0.00 | +info@netcraft.com |
| 41 | 1 | 0.00 | 0 | 0.00 | MSIE 9.0; Windows NT 6.1; en-US |
| 42 | 1 | 0.00 | 1 | 0.00 | WinHttp.WinHttpRequest.5 |
| 43 | 1 | 0.00 | 1 | 0.00 | +http://www.loadtime.net/bot.html |
| 44 | 1 | 0.00 | 0 | 0.00 | X11 |
