| Used Operating Systems |
| 1 | 25524 | 31.17 | 274 | 1.44 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 24794 | 30.28 | 6499 | 34.12 | Windows NT |
| 3 | 6852 | 8.37 | 3973 | 20.86 | +http://ahrefs.com/robot/ |
| 4 | 6400 | 7.82 | 1798 | 9.44 | +http://www.bing.com/bingbot.htm |
| 5 | 4011 | 4.90 | 282 | 1.48 | +http://yandex.com/bots |
| 6 | 3032 | 3.70 | 1690 | 8.87 | +http://www.google.com/bot.html |
| 7 | 2353 | 2.87 | 2016 | 10.59 | +http://www.baidu.com/search/spider.html |
| 8 | 2001 | 2.44 | 2 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 9 | 1991 | 2.43 | 1128 | 5.92 | +http://www.easou.com/search/spider.html |
| 10 | 1665 | 2.03 | 359 | 1.89 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 1041 | 1.27 | 474 | 2.49 | +http://www.linkdex.com/bots/ |
| 12 | 532 | 0.65 | 11 | 0.06 | +http://siteexplorer.info/ |
| 13 | 501 | 0.61 | 1 | 0.01 | http://crawler.sistrix.net/ |
| 14 | 265 | 0.32 | 166 | 0.87 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 140 | 0.17 | 2 | 0.01 | http://www.searchmetrics.com/en/searchme... |
| 16 | 114 | 0.14 | 87 | 0.46 | Windows 95 |
| 17 | 65 | 0.08 | 9 | 0.05 | Windows 98 |
| 18 | 62 | 0.08 | 1 | 0.01 | +http://www.linkpad.ru |
| 19 | 55 | 0.07 | 5 | 0.03 | +http://www.profound.net/urlappendbot.ht... |
| 20 | 53 | 0.06 | 31 | 0.16 | +http://www.exabot.com/go/robot |
| 21 | 52 | 0.06 | 28 | 0.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 22 | 47 | 0.06 | 24 | 0.13 | +http://www.proximic.com/info/spider.php |
| 23 | 34 | 0.04 | 17 | 0.09 | +http://www.meanpath.com/meanpathbot.htm... |
| 24 | 30 | 0.04 | 8 | 0.04 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 25 | 26 | 0.03 | 2 | 0.01 | +http://www.xovibot.net/ |
| 26 | 22 | 0.03 | 20 | 0.11 | Windows 3.1 |
| 27 | 21 | 0.03 | 19 | 0.10 | Windows CE |
| 28 | 19 | 0.02 | 18 | 0.09 | Auto; Windows |
| 29 | 18 | 0.02 | 15 | 0.08 | ) - BrowseX (2.0.0 Windows |
| 30 | 16 | 0.02 | 14 | 0.07 | Windows ME |
| 31 | 16 | 0.02 | 0 | 0.00 | Windows XP |
| 32 | 16 | 0.02 | 7 | 0.04 | +http://fulltext.sblog.cz/ |
| 33 | 14 | 0.02 | 13 | 0.07 | MSIE 5.5; Windows NT 4.0 |
| 34 | 13 | 0.02 | 12 | 0.06 | Windows 2000 |
| 35 | 9 | 0.01 | 8 | 0.04 | Intel Mac OS X 10.6 |
| 36 | 8 | 0.01 | 4 | 0.02 | +http://help.coccoc.com/ |
| 37 | 8 | 0.01 | 7 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 38 | 7 | 0.01 | 2 | 0.01 | Linux [unknown version] |
| 39 | 7 | 0.01 | 1 | 0.01 | http://filterdb.iss.net/crawler/ |
| 40 | 5 | 0.01 | 1 | 0.01 | +http://overx50.com |
| 41 | 5 | 0.01 | 1 | 0.01 | +http://getdownload.ws |
| 42 | 4 | 0.00 | 4 | 0.02 | +http://www.netseer.com/crawler.html; cr... |
| 43 | 4 | 0.00 | 2 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 44 | 3 | 0.00 | 0 | 0.00 | Macintosh PPC |
| 45 | 3 | 0.00 | 1 | 0.01 | Android |
| 46 | 3 | 0.00 | 1 | 0.01 | +http://inload.me |
| 47 | 3 | 0.00 | 1 | 0.01 | +http://mydownloadengine.com |
| 48 | 2 | 0.00 | 2 | 0.01 | +http://fb02itsscan.fh-muenster.de |
| 49 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 50 | 2 | 0.00 | 1 | 0.01 | +http://wmaid.com/explore/ |
| 51 | 1 | 0.00 | 1 | 0.01 | +http://www.marketwire.com |
| 52 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 53 | 1 | 0.00 | 1 | 0.01 | WinHttp.WinHttpRequest.5 |
| 54 | 1 | 0.00 | 1 | 0.01 | Trident/6.0; Windows NT 6.0; MEGAUPLOAD ... |
| 55 | 1 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
