| Used Operating Systems |
| 1 | 20887 | 35.71 | 5722 | 32.25 | Windows NT |
| 2 | 15041 | 25.71 | 358 | 2.02 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 11163 | 19.08 | 8742 | 49.26 | +http://www.baidu.com/search/spider.html |
| 4 | 2638 | 4.51 | 547 | 3.08 | +http://www.bing.com/bingbot.htm |
| 5 | 2082 | 3.56 | 761 | 4.29 | +http://www.google.com/bot.html |
| 6 | 2037 | 3.48 | 205 | 1.16 | +http://yandex.com/bots |
| 7 | 1643 | 2.81 | 320 | 1.80 | help@moz.com |
| 8 | 880 | 1.50 | 4 | 0.02 | +http://www.seoprofiler.com/bot |
| 9 | 367 | 0.63 | 278 | 1.57 | Windows 95 |
| 10 | 257 | 0.44 | 53 | 0.30 | Windows 98 |
| 11 | 226 | 0.39 | 87 | 0.49 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 147 | 0.25 | 52 | 0.29 | +http://www.linkdex.com/about/bots/ |
| 13 | 83 | 0.14 | 11 | 0.06 | X11 |
| 14 | 82 | 0.14 | 74 | 0.42 | MSIE 5.5; Windows NT 5.0 |
| 15 | 80 | 0.14 | 10 | 0.06 | Windows XP |
| 16 | 76 | 0.13 | 70 | 0.39 | Auto; Windows |
| 17 | 75 | 0.13 | 64 | 0.36 | Windows 3.1 |
| 18 | 72 | 0.12 | 53 | 0.30 | Windows CE |
| 19 | 72 | 0.12 | 60 | 0.34 | Windows ME |
| 20 | 71 | 0.12 | 63 | 0.36 | ) - BrowseX (2.0.0 Windows |
| 21 | 60 | 0.10 | 56 | 0.32 | MSIE 5.5; Windows NT 4.0 |
| 22 | 59 | 0.10 | 36 | 0.20 | http://help.yahoo.com/help/us/ysearch/sl... |
| 23 | 58 | 0.10 | 56 | 0.32 | Windows 2000 |
| 24 | 45 | 0.08 | 1 | 0.01 | +http://endb-consolidated.aihit.com/ |
| 25 | 44 | 0.08 | 4 | 0.02 | +http://www.profound.net/urlappendbot.ht... |
| 26 | 41 | 0.07 | 16 | 0.09 | +http://www.exabot.com/go/robot |
| 27 | 32 | 0.05 | 2 | 0.01 | http://www.searchmetrics.com/en/searchme... |
| 28 | 24 | 0.04 | 16 | 0.09 | MSIE 5.5; Windows 95 |
| 29 | 22 | 0.04 | 5 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 30 | 18 | 0.03 | 2 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 31 | 18 | 0.03 | 2 | 0.01 | Android 2.3.5 |
| 32 | 16 | 0.03 | 0 | 0.00 | Windows 9. |
| 33 | 16 | 0.03 | 1 | 0.01 | Intel Mac OS X 10.6 |
| 34 | 8 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 35 | 8 | 0.01 | 4 | 0.02 | http://crawler.sistrix.net/ |
| 36 | 8 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 37 | 6 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 38 | 6 | 0.01 | 3 | 0.02 | ScoutJet; +http://blekko.com/about/blekk... |
| 39 | 5 | 0.01 | 1 | 0.01 | Win32 |
| 40 | 4 | 0.01 | 2 | 0.01 | Series 60 |
| 41 | 4 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 42 | 4 | 0.01 | 0 | 0.00 | http://www.youdao.com/help/webmaster/spi... |
| 43 | 2 | 0.00 | 0 | 0.00 | Android |
| 44 | 2 | 0.00 | 2 | 0.01 | Linux i686 [unknown version] |
| 45 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 46 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 47 | 1 | 0.00 | 0 | 0.00 | AOL 9.7; AOLBuild 4343.1028; Windows NT ... |
