| Used Operating Systems |
| 1 | 19290 | 61.68 | 5538 | 65.02 | Windows NT |
| 2 | 7080 | 22.64 | 117 | 1.37 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 1548 | 4.95 | 1476 | 17.33 | +http://www.baidu.com/search/spider.html |
| 4 | 686 | 2.19 | 216 | 2.54 | +http://www.bing.com/bingbot.htm |
| 5 | 511 | 1.63 | 172 | 2.02 | +http://www.google.com/bot.html |
| 6 | 327 | 1.05 | 255 | 2.99 | Windows 95 |
| 7 | 279 | 0.89 | 24 | 0.28 | +http://yandex.com/bots |
| 8 | 241 | 0.77 | 42 | 0.49 | Windows 98 |
| 9 | 162 | 0.52 | 58 | 0.68 | +http://www.linkdex.com/about/bots/ |
| 10 | 133 | 0.43 | 12 | 0.14 | +http://www.profound.net/urlappendbot.ht... |
| 11 | 88 | 0.28 | 11 | 0.13 | X11 |
| 12 | 70 | 0.22 | 65 | 0.76 | MSIE 5.5; Windows NT 4.0 |
| 13 | 69 | 0.22 | 64 | 0.75 | Windows 2000 |
| 14 | 67 | 0.21 | 0 | 0.00 | Windows XP |
| 15 | 67 | 0.21 | 61 | 0.72 | Windows ME |
| 16 | 64 | 0.20 | 54 | 0.63 | Windows 3.1 |
| 17 | 64 | 0.20 | 61 | 0.72 | MSIE 5.5; Windows NT 5.0 |
| 18 | 64 | 0.20 | 55 | 0.65 | ) - BrowseX (2.0.0 Windows |
| 19 | 63 | 0.20 | 63 | 0.74 | +http://www.openfos.com |
| 20 | 59 | 0.19 | 53 | 0.62 | Windows CE |
| 21 | 58 | 0.19 | 55 | 0.65 | Auto; Windows |
| 22 | 42 | 0.13 | 3 | 0.04 | +http://www.seoprofiler.com/bot |
| 23 | 37 | 0.12 | 0 | 0.00 | +http://www.exabot.com/go/robot |
| 24 | 31 | 0.10 | 14 | 0.16 | +http://www.easou.com/search/spider.html |
| 25 | 31 | 0.10 | 3 | 0.04 | Android 2.3.5 |
| 26 | 30 | 0.10 | 12 | 0.14 | help@moz.com |
| 27 | 28 | 0.09 | 13 | 0.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 28 | 17 | 0.05 | 1 | 0.01 | iPhone |
| 29 | 13 | 0.04 | 1 | 0.01 | +http://endb-consolidated.aihit.com/ |
| 30 | 12 | 0.04 | 3 | 0.04 | +http://www.meanpath.com/meanpathbot.htm... |
| 31 | 6 | 0.02 | 3 | 0.04 | http://crawler.sistrix.net/ |
| 32 | 6 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 33 | 5 | 0.02 | 5 | 0.06 | Linux i686 [unknown version] |
| 34 | 5 | 0.02 | 2 | 0.02 | +http://www.semrush.com/bot.html |
| 35 | 4 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 36 | 4 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 37 | 3 | 0.01 | 0 | 0.00 | Win32 |
| 38 | 3 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 39 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 40 | 2 | 0.01 | 2 | 0.02 | Linux [unknown version] |
| 41 | 2 | 0.01 | 1 | 0.01 | +http://www.yunyun.com/spider.html |
| 42 | 1 | 0.00 | 1 | 0.01 | http://help.yahoo.com/help/us/ysearch/sl... |
