| Used Operating Systems |
| 1 | 53816 | 43.15 | 320 | 3.43 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 30812 | 24.71 | 2880 | 30.86 | Windows NT |
| 3 | 16496 | 13.23 | 749 | 8.03 | +http://ahrefs.com/robot/ |
| 4 | 7105 | 5.70 | 3615 | 38.74 | +http://www.baidu.com/search/spider.html |
| 5 | 5112 | 4.10 | 6 | 0.06 | +http://webmeup-crawler.com/ |
| 6 | 4091 | 3.28 | 1060 | 11.36 | +http://www.easou.com/search/spider.html |
| 7 | 2002 | 1.61 | 2 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 8 | 1498 | 1.20 | 148 | 1.59 | +http://yandex.com/bots |
| 9 | 957 | 0.77 | 154 | 1.65 | +http://www.google.com/bot.html |
| 10 | 751 | 0.60 | 29 | 0.31 | Windows 98 |
| 11 | 300 | 0.24 | 20 | 0.21 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 264 | 0.21 | 75 | 0.80 | +http://www.linkdex.com/bots/ |
| 13 | 252 | 0.20 | 51 | 0.55 | +http://www.linkdex.com/about/bots/ |
| 14 | 220 | 0.18 | 59 | 0.63 | +http://www.bing.com/bingbot.htm |
| 15 | 176 | 0.14 | 0 | 0.00 | America Online Browser 1.1; rev1.5; Wind... |
| 16 | 130 | 0.10 | 59 | 0.63 | http://www.opensiteexplorer.org/dotbot, ... |
| 17 | 126 | 0.10 | 43 | 0.46 | help@moz.com |
| 18 | 123 | 0.10 | 21 | 0.23 | Windows 95 |
| 19 | 90 | 0.07 | 0 | 0.00 | +http://indonesiancoder.com |
| 20 | 74 | 0.06 | 0 | 0.00 | J2ME/MIDP |
| 21 | 65 | 0.05 | 3 | 0.03 | X11 |
| 22 | 52 | 0.04 | 0 | 0.00 | Macintosh PPC |
| 23 | 42 | 0.03 | 0 | 0.00 | FreeBSD [unknown version] |
| 24 | 41 | 0.03 | 2 | 0.02 | Linux i686 [unknown version] |
| 25 | 30 | 0.02 | 2 | 0.02 | Android 2.3.5 |
| 26 | 16 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 27 | 9 | 0.01 | 8 | 0.09 | Windows 3.1 |
| 28 | 8 | 0.01 | 0 | 0.00 | info@muso.com; +http://www.muso.com |
| 29 | 8 | 0.01 | 4 | 0.04 | http://crawler.sistrix.net/ |
| 30 | 8 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 31 | 5 | 0.00 | 4 | 0.04 | Windows XP |
| 32 | 4 | 0.00 | 0 | 0.00 | Solaris 2.4.x |
| 33 | 4 | 0.00 | 4 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 34 | 4 | 0.00 | 0 | 0.00 | Macintosh |
| 35 | 4 | 0.00 | 2 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 36 | 3 | 0.00 | 3 | 0.03 | Windows 2000 |
| 37 | 3 | 0.00 | 3 | 0.03 | Windows CE |
| 38 | 3 | 0.00 | 3 | 0.03 | Windows ME |
| 39 | 2 | 0.00 | 2 | 0.02 | +info@netcraft.com |
| 40 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.5 |
| 41 | 1 | 0.00 | 0 | 0.00 | Linux [unknown version] |
