| Used Operating Systems by Visits |
| 1 | 12771 | 41.85 | 10035 | 61.25 | +http://www.baidu.com/search/spider.html |
| 2 | 5347 | 17.52 | 1903 | 11.61 | Windows NT |
| 3 | 2179 | 7.14 | 1019 | 6.22 | +http://www.easou.com/search/spider.html |
| 4 | 2842 | 9.31 | 961 | 5.87 | +http://www.bing.com/bingbot.htm |
| 5 | 1574 | 5.16 | 774 | 4.72 | +http://www.google.com/bot.html |
| 6 | 565 | 1.85 | 370 | 2.26 | +http://ahrefs.com/robot/ |
| 7 | 928 | 3.04 | 295 | 1.80 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 615 | 2.02 | 264 | 1.61 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 625 | 2.05 | 254 | 1.55 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 538 | 1.76 | 113 | 0.69 | +http://yandex.com/bots |
| 11 | 350 | 1.15 | 91 | 0.56 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 406 | 1.33 | 44 | 0.27 | +http://fulltext.sblog.cz/ |
| 13 | 37 | 0.12 | 30 | 0.18 | Linux i686 [unknown version] |
| 14 | 68 | 0.22 | 30 | 0.18 | +http://www.career-x.de/bot.html |
| 15 | 78 | 0.26 | 23 | 0.14 | Windows 95 |
| 16 | 52 | 0.17 | 19 | 0.12 | Windows 98 |
| 17 | 42 | 0.14 | 19 | 0.12 | +http://www.exabot.com/go/robot |
| 18 | 24 | 0.08 | 11 | 0.07 | +http://help.coccoc.com/ |
| 19 | 10 | 0.03 | 10 | 0.06 | +http://www.xovibot.net/ |
| 20 | 90 | 0.29 | 9 | 0.05 | http://www.searchmetrics.com/en/searchme... |
| 21 | 22 | 0.07 | 9 | 0.05 | +http://www.linkdex.com/bots/ |
| 22 | 13 | 0.04 | 8 | 0.05 | Linux [unknown version] |
| 23 | 14 | 0.05 | 7 | 0.04 | http://crawler.sistrix.net/ |
| 24 | 20 | 0.07 | 7 | 0.04 | Windows XP |
| 25 | 30 | 0.10 | 7 | 0.04 | Windows 3.1 |
| 26 | 15 | 0.05 | 5 | 0.03 | Windows CE |
| 27 | 12 | 0.04 | 4 | 0.02 | Windows 2000 |
| 28 | 12 | 0.04 | 4 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 29 | 12 | 0.04 | 4 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 30 | 3 | 0.01 | 3 | 0.02 | Intel Mac OS X 10.4 |
| 31 | 3 | 0.01 | 3 | 0.02 | +http://www.angeldonate.com |
| 32 | 6 | 0.02 | 3 | 0.02 | +http://botw.org |
| 33 | 6 | 0.02 | 3 | 0.02 | ScoutJet; +http://blekko.com/about/blekk... |
| 34 | 42 | 0.14 | 2 | 0.01 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 35 | 6 | 0.02 | 2 | 0.01 | Auto; Windows |
| 36 | 2 | 0.01 | 2 | 0.01 | +http://pmoz.info/doc/botinfo.htm |
| 37 | 2 | 0.01 | 2 | 0.01 | +http://fb02itsscan.fh-muenster.de |
| 38 | 4 | 0.01 | 2 | 0.01 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 39 | 6 | 0.02 | 2 | 0.01 | Windows Phone OS 7.5 |
| 40 | 529 | 1.73 | 2 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 41 | 6 | 0.02 | 2 | 0.01 | +http://downloaflare.biz |
| 42 | 6 | 0.02 | 2 | 0.01 | Windows ME |
| 43 | 4 | 0.01 | 2 | 0.01 | +info@netcraft.com |
| 44 | 6 | 0.02 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 45 | 4 | 0.01 | 2 | 0.01 | +http://www.idmarch.org/bot.html |
| 46 | 2 | 0.01 | 2 | 0.01 | +http://wmaid.com/explore/ |
| 47 | 4 | 0.01 | 2 | 0.01 | +http://gimme60.com |
| 48 | 485 | 1.59 | 2 | 0.01 | http://crawler.007ac9.net/ |
| 49 | 40 | 0.13 | 2 | 0.01 | Windows 90 |
| 50 | 2 | 0.01 | 2 | 0.01 | Solaris 7.x |
| 51 | 4 | 0.01 | 2 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 52 | 2 | 0.01 | 1 | 0.01 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 53 | 2 | 0.01 | 1 | 0.01 | Win32 |
| 54 | 2 | 0.01 | 1 | 0.01 | +http://www.netseer.com/crawler.html; cr... |
| 55 | 3 | 0.01 | 1 | 0.01 | +http://getdownload.ws |
| 56 | 20 | 0.07 | 1 | 0.01 | +http://fulltext.sblog.cz/screenshot/ |
| 57 | 3 | 0.01 | 1 | 0.01 | +http://overx50.com/ |
| 58 | 2 | 0.01 | 1 | 0.01 | +http://siteexplorer.info/ |
| 59 | 1 | 0.00 | 1 | 0.01 | WinHttp.WinHttpRequest.5 |
| 60 | 2 | 0.01 | 0 | 0.00 | J2ME/MIDP |
| 61 | 4 | 0.01 | 0 | 0.00 | Windows 9. |
| 62 | 12 | 0.04 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
