| Used Operating Systems by Visits |
| 1 | 24448 | 30.44 | 5350 | 55.50 | Windows NT |
| 2 | 2422 | 3.02 | 1909 | 19.80 | +http://www.baidu.com/search/spider.html |
| 3 | 1624 | 2.02 | 561 | 5.82 | +http://www.google.com/bot.html |
| 4 | 2162 | 2.69 | 558 | 5.79 | +http://www.bing.com/bingbot.htm |
| 5 | 46347 | 57.71 | 357 | 3.70 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 552 | 0.69 | 148 | 1.54 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 482 | 0.60 | 112 | 1.16 | +http://yandex.com/bots |
| 8 | 283 | 0.35 | 95 | 0.99 | +http://www.linkdex.com/bots/ |
| 9 | 253 | 0.32 | 79 | 0.82 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 124 | 0.15 | 76 | 0.79 | +http://www.easou.com/search/spider.html |
| 11 | 207 | 0.26 | 60 | 0.62 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 102 | 0.13 | 51 | 0.53 | Windows 95 |
| 13 | 76 | 0.09 | 44 | 0.46 | +http://ahrefs.com/robot/ |
| 14 | 84 | 0.10 | 27 | 0.28 | +http://fulltext.sblog.cz/ |
| 15 | 58 | 0.07 | 24 | 0.25 | Windows 98 |
| 16 | 51 | 0.06 | 20 | 0.21 | +http://www.exabot.com/go/robot |
| 17 | 38 | 0.05 | 16 | 0.17 | Windows ME |
| 18 | 30 | 0.04 | 14 | 0.15 | MSIE 5.5; Windows NT 5.0 |
| 19 | 21 | 0.03 | 14 | 0.15 | MSIE 5.5; Windows NT 4.0 |
| 20 | 21 | 0.03 | 9 | 0.09 | ) - BrowseX (2.0.0 Windows |
| 21 | 12 | 0.01 | 8 | 0.08 | Windows CE |
| 22 | 8 | 0.01 | 8 | 0.08 | +http://www.xovibot.net/ |
| 23 | 155 | 0.19 | 7 | 0.07 | http://www.searchmetrics.com/en/searchme... |
| 24 | 42 | 0.05 | 7 | 0.07 | X11 |
| 25 | 7 | 0.01 | 5 | 0.05 | Windows 2000 |
| 26 | 15 | 0.02 | 5 | 0.05 | +http://getdownload.ws |
| 27 | 5 | 0.01 | 5 | 0.05 | Intel Mac OS X 10.4 |
| 28 | 10 | 0.01 | 5 | 0.05 | ScoutJet; +http://blekko.com/about/blekk... |
| 29 | 7 | 0.01 | 4 | 0.04 | +http://www.proximic.com/info/spider.php |
| 30 | 44 | 0.05 | 4 | 0.04 | Linux [unknown version] |
| 31 | 8 | 0.01 | 4 | 0.04 | Windows XP |
| 32 | 9 | 0.01 | 4 | 0.04 | Linux i686 [unknown version] |
| 33 | 4 | 0.00 | 4 | 0.04 | +http://wmaid.com/explore/ |
| 34 | 138 | 0.17 | 4 | 0.04 | +http://endb-consolidated.aihit.com/ |
| 35 | 7 | 0.01 | 3 | 0.03 | Auto; Windows |
| 36 | 5 | 0.01 | 3 | 0.03 | +http://tweetmeme.com/ |
| 37 | 100 | 0.12 | 3 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 38 | 5 | 0.01 | 3 | 0.03 | Windows 3.1 |
| 39 | 20 | 0.02 | 3 | 0.03 | Android 2.3.5 |
| 40 | 8 | 0.01 | 2 | 0.02 | +http://uni5download.com |
| 41 | 8 | 0.01 | 2 | 0.02 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 42 | 3 | 0.00 | 2 | 0.02 | +info@netcraft.com |
| 43 | 10 | 0.01 | 2 | 0.02 | +http://tryload.in |
| 44 | 2 | 0.00 | 2 | 0.02 | +http://gimme60.com |
| 45 | 2 | 0.00 | 2 | 0.02 | https://help.yahoo.com/kb/mail/yahoo-lin... |
| 46 | 4 | 0.00 | 2 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 47 | 1 | 0.00 | 1 | 0.01 | +http://fb02itsscan.fh-muenster.de |
| 48 | 32 | 0.04 | 1 | 0.01 | http://crawler.sistrix.net/ |
| 49 | 1 | 0.00 | 1 | 0.01 | robot; +http://yandex.com/bots |
| 50 | 2 | 0.00 | 1 | 0.01 | +http://www.idmarch.org/bot.html |
| 51 | 64 | 0.08 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 52 | 1 | 0.00 | 1 | 0.01 | Windows 9x |
| 53 | 3 | 0.00 | 1 | 0.01 | WinHttp.WinHttpRequest.5 |
| 54 | 1 | 0.00 | 1 | 0.01 | ActiveXperts.Http |
| 55 | 1 | 0.00 | 1 | 0.01 | +http://www.wmtips.com/tools/ |
| 56 | 2 | 0.00 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 57 | 2 | 0.00 | 1 | 0.01 | +http://siteexplorer.info/ |
| 58 | 3 | 0.00 | 1 | 0.01 | +http://overx50.com/ |
| 59 | 1 | 0.00 | 0 | 0.00 | Win32 |
| 60 | 2 | 0.00 | 0 | 0.00 | J2ME/MIDP |
| 61 | 6 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 62 | 2 | 0.00 | 0 | 0.00 | mailto: crawling@ubermetrics-technologie... |
| 63 | 1 | 0.00 | 0 | 0.00 | +http://www.dredger.biz/ |
| 64 | 17 | 0.02 | 0 | 0.00 | AOL 9.7; AOLBuild 4343.2039; Windows NT ... |
| 65 | 10 | 0.01 | 0 | 0.00 | Windows Phone OS 7.5 |
| 66 | 6 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 67 | 2 | 0.00 | 0 | 0.00 | Linux 2.4.x |
| 68 | 127 | 0.16 | 0 | 0.00 | Windows Phone OS 7.0 |
| 69 | 2 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
