| Used Operating Systems |
| 1 | 12137 | 43.50 | 1136 | 14.37 | Windows NT |
| 2 | 3742 | 13.41 | 3210 | 40.59 | +http://www.baidu.com/search/spider.html |
| 3 | 2412 | 8.65 | 800 | 10.12 | +http://www.bing.com/bingbot.htm |
| 4 | 2296 | 8.23 | 729 | 9.22 | +http://www.google.com/bot.html |
| 5 | 1770 | 6.34 | 209 | 2.64 | +http://yandex.com/bots |
| 6 | 1586 | 5.68 | 464 | 5.87 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 1301 | 4.66 | 220 | 2.78 | ezooms.bot@gmail.com |
| 8 | 675 | 2.42 | 501 | 6.34 | +http://ahrefs.com/robot/ |
| 9 | 330 | 1.18 | 55 | 0.70 | Intel Mac OS X 10.4 |
| 10 | 248 | 0.89 | 6 | 0.08 | http://crawler.sistrix.net/ |
| 11 | 244 | 0.87 | 243 | 3.07 | http://www.yodao.com/help/webmaster/spid... |
| 12 | 227 | 0.81 | 44 | 0.56 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 165 | 0.59 | 48 | 0.61 | Linux i686 [unknown version] |
| 14 | 110 | 0.39 | 0 | 0.00 | Linux 2.4.x |
| 15 | 108 | 0.39 | 47 | 0.59 | +http://www.career-x.de/bot.html |
| 16 | 61 | 0.22 | 28 | 0.35 | crawler@unister.de |
| 17 | 48 | 0.17 | 25 | 0.32 | +http://discoveryengine.com/discoverybot... |
| 18 | 43 | 0.15 | 13 | 0.16 | ScoutJet; +http://blekko.com/about/blekk... |
| 19 | 39 | 0.14 | 22 | 0.28 | Windows 98 |
| 20 | 37 | 0.13 | 19 | 0.24 | MSIE 5.5; Windows NT 4.0 |
| 21 | 36 | 0.13 | 16 | 0.20 | +http://www.exabot.com/go/robot |
| 22 | 30 | 0.11 | 6 | 0.08 | Windows 95 |
| 23 | 30 | 0.11 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 24 | 28 | 0.10 | 2 | 0.03 | X11 |
| 25 | 23 | 0.08 | 1 | 0.01 | Intel Mac OS X 10.6 |
| 26 | 18 | 0.06 | 2 | 0.03 | Series 60 |
| 27 | 16 | 0.06 | 4 | 0.05 | +http://filterdb.iss.net/crawler/ |
| 28 | 14 | 0.05 | 0 | 0.00 | Windows 9. |
| 29 | 12 | 0.04 | 1 | 0.01 | Nintendo Wii |
| 30 | 12 | 0.04 | 4 | 0.05 | +http://www.procog.com/spider.html |
| 31 | 10 | 0.04 | 2 | 0.03 | Intel Mac OS X 10.5 |
| 32 | 9 | 0.03 | 0 | 0.00 | http://desktop.google.com/ |
| 33 | 9 | 0.03 | 9 | 0.11 | WinHttp.WinHttpRequest.5 |
| 34 | 8 | 0.03 | 2 | 0.03 | Intel Mac OS X 10.7 |
| 35 | 6 | 0.02 | 4 | 0.05 | Windows ME |
| 36 | 6 | 0.02 | 3 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 37 | 6 | 0.02 | 3 | 0.04 | +http://www.acoon.de/robot.asp |
| 38 | 6 | 0.02 | 3 | 0.04 | +http://shoulu.jike.com/spider.html |
| 39 | 4 | 0.01 | 2 | 0.03 | Windows CE |
| 40 | 4 | 0.01 | 2 | 0.03 | Android |
| 41 | 4 | 0.01 | 4 | 0.05 | +http://pmoz.info/doc/botinfo.htm |
| 42 | 4 | 0.01 | 2 | 0.03 | +http://www.web.nl/webmasters/spider.htm... |
| 43 | 4 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 44 | 4 | 0.01 | 2 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 45 | 3 | 0.01 | 1 | 0.01 | +http://www.openindex.io/en/webmasters/s... |
| 46 | 2 | 0.01 | 1 | 0.01 | J2ME/MIDP |
| 47 | 2 | 0.01 | 1 | 0.01 | Windows 2000 |
| 48 | 2 | 0.01 | 2 | 0.03 | +http://www.netseer.com/crawler.html; cr... |
| 49 | 2 | 0.01 | 1 | 0.01 | Auto; Windows |
| 50 | 2 | 0.01 | 2 | 0.03 | http://www.youdao.com/help/webmaster/spi... |
| 51 | 2 | 0.01 | 2 | 0.03 | +http://domains.checkparams.com/ |
| 52 | 2 | 0.01 | 2 | 0.03 | Macintosh |
| 53 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
