| Used Operating Systems |
| 1 | 4083 | 46.13 | 2055 | 42.35 | Windows NT |
| 2 | 2326 | 26.28 | 2113 | 43.55 | +http://www.baidu.com/search/spider.html |
| 3 | 998 | 11.28 | 236 | 4.86 | +http://www.google.com/bot.html |
| 4 | 743 | 8.39 | 272 | 5.61 | +http://www.bing.com/bingbot.htm |
| 5 | 389 | 4.39 | 34 | 0.70 | +http://yandex.com/bots |
| 6 | 54 | 0.61 | 15 | 0.31 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 33 | 0.37 | 11 | 0.23 | +http://www.seoprofiler.com/bot |
| 8 | 26 | 0.29 | 15 | 0.31 | X11 |
| 9 | 24 | 0.27 | 12 | 0.25 | help@moz.com |
| 10 | 17 | 0.19 | 4 | 0.08 | Windows 98 |
| 11 | 16 | 0.18 | 8 | 0.16 | http://crawler.sistrix.net/ |
| 12 | 16 | 0.18 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 13 | 15 | 0.17 | 10 | 0.21 | Android 2.3.5 |
| 14 | 14 | 0.16 | 14 | 0.29 | Windows 95 |
| 15 | 12 | 0.14 | 6 | 0.12 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 10 | 0.11 | 0 | 0.00 | Macintosh PPC |
| 17 | 9 | 0.10 | 8 | 0.16 | Windows ME |
| 18 | 8 | 0.09 | 4 | 0.08 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 19 | 8 | 0.09 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 20 | 7 | 0.08 | 7 | 0.14 | Linux i686 [unknown version] |
| 21 | 6 | 0.07 | 2 | 0.04 | +http://endb-consolidated.aihit.com/ |
| 22 | 5 | 0.06 | 4 | 0.08 | +info@netcraft.com |
| 23 | 5 | 0.06 | 5 | 0.10 | ) - BrowseX (2.0.0 Windows |
| 24 | 4 | 0.05 | 4 | 0.08 | Windows 2000 |
| 25 | 4 | 0.05 | 0 | 0.00 | Win32 |
| 26 | 4 | 0.05 | 3 | 0.06 | Windows XP |
| 27 | 4 | 0.05 | 4 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 28 | 3 | 0.03 | 2 | 0.04 | Auto; Windows |
| 29 | 3 | 0.03 | 1 | 0.02 | +http://www.profound.net/urlappendbot.ht... |
| 30 | 2 | 0.02 | 0 | 0.00 | Linux 2.4.x |
| 31 | 1 | 0.01 | 1 | 0.02 | Linux [unknown version] |
| 32 | 1 | 0.01 | 1 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 33 | 1 | 0.01 | 1 | 0.02 | Windows 3.1 |
