| Used Operating Systems |
| 1 | 43548 | 37.94 | 17279 | 72.28 | +http://www.baidu.com/search/spider.html |
| 2 | 24759 | 21.57 | 204 | 0.85 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 12354 | 10.76 | 1622 | 6.78 | +http://www.bing.com/bingbot.htm |
| 4 | 9038 | 7.87 | 258 | 1.08 | +http://ahrefs.com/robot/ |
| 5 | 5359 | 4.67 | 2 | 0.01 | +http://webmeup-crawler.com/ |
| 6 | 4801 | 4.18 | 406 | 1.70 | +http://www.semrush.com/bot.html |
| 7 | 2947 | 2.57 | 823 | 3.44 | Windows NT |
| 8 | 2607 | 2.27 | 1443 | 6.04 | +http://www.google.com/bot.html |
| 9 | 1967 | 1.71 | 1 | 0.00 | +http://www.seokicks.de/robot.html |
| 10 | 1519 | 1.32 | 431 | 1.80 | +http://www.xovibot.net/ |
| 11 | 1467 | 1.28 | 6 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 12 | 1431 | 1.25 | 354 | 1.48 | +http://yandex.com/bots |
| 13 | 1333 | 1.16 | 560 | 2.34 | +http://www.linkdex.com/bots/ |
| 14 | 421 | 0.37 | 244 | 1.02 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 259 | 0.23 | 5 | 0.02 | Linux [unknown version] |
| 16 | 250 | 0.22 | 1 | 0.00 | Linux i586 [unknown version] |
| 17 | 152 | 0.13 | 75 | 0.31 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 18 | 138 | 0.12 | 1 | 0.00 | http://www.searchmetrics.com/en/searchme... |
| 19 | 52 | 0.05 | 10 | 0.04 | http://www.opensiteexplorer.org/dotbot, ... |
| 20 | 46 | 0.04 | 9 | 0.04 | +http://fulltext.sblog.cz/ |
| 21 | 44 | 0.04 | 26 | 0.11 | +http://www.exabot.com/go/robot |
| 22 | 34 | 0.03 | 34 | 0.14 | +http://monasterytea.spbdyet.ru |
| 23 | 29 | 0.03 | 2 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 24 | 21 | 0.02 | 8 | 0.03 | Windows 98 |
| 25 | 20 | 0.02 | 11 | 0.05 | +http://www.grapeshot.co.uk/crawler.php |
| 26 | 20 | 0.02 | 10 | 0.04 | +http://duckduckgo.com |
| 27 | 19 | 0.02 | 7 | 0.03 | Windows 95 |
| 28 | 19 | 0.02 | 19 | 0.08 | +http://warifort.moykrest.ru/ |
| 29 | 12 | 0.01 | 6 | 0.03 | +http://help.coccoc.com/ |
| 30 | 12 | 0.01 | 1 | 0.00 | Windows XP |
| 31 | 12 | 0.01 | 5 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 32 | 12 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 33 | 11 | 0.01 | 5 | 0.02 | Windows CE |
| 34 | 11 | 0.01 | 6 | 0.03 | +http://www.proximic.com/info/spider.php |
| 35 | 10 | 0.01 | 3 | 0.01 | Intel Mac OS X 10.6 |
| 36 | 8 | 0.01 | 3 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 37 | 8 | 0.01 | 4 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 38 | 7 | 0.01 | 3 | 0.01 | Windows 3.1 |
| 39 | 6 | 0.01 | 2 | 0.01 | Windows 2000 |
| 40 | 6 | 0.01 | 3 | 0.01 | +http://www.netseer.com/crawler.html; cr... |
| 41 | 5 | 0.00 | 3 | 0.01 | Auto; Windows |
| 42 | 3 | 0.00 | 1 | 0.00 | +http://prlog.ru/ |
| 43 | 3 | 0.00 | 1 | 0.00 | MSIE 5.5; Windows NT 4.0 |
| 44 | 2 | 0.00 | 2 | 0.01 | +https://gimmeusa.com/pages/crawler |
| 45 | 2 | 0.00 | 1 | 0.00 | +http://crawler.seolytics.net/ |
| 46 | 2 | 0.00 | 2 | 0.01 | Linux i686 [unknown version] |
| 47 | 2 | 0.00 | 1 | 0.00 | +info@netcraft.com |
| 48 | 2 | 0.00 | 2 | 0.01 | X11 |
| 49 | 1 | 0.00 | 1 | 0.00 | +http://glutenfreepleasure.com/ |
| 50 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 51 | 1 | 0.00 | 1 | 0.00 | Macintosh |
