| Used Operating Systems |
| 1 | 8208 | 43.00 | 3073 | 51.00 | Windows NT |
| 2 | 5061 | 26.51 | 318 | 5.28 | help@moz.com |
| 3 | 2414 | 12.65 | 2031 | 33.71 | +http://www.baidu.com/search/spider.html |
| 4 | 1061 | 5.56 | 63 | 1.05 | ezooms.bot@gmail.com |
| 5 | 806 | 4.22 | 220 | 3.65 | +http://www.bing.com/bingbot.htm |
| 6 | 695 | 3.64 | 117 | 1.94 | +http://www.google.com/bot.html |
| 7 | 356 | 1.86 | 45 | 0.75 | +http://yandex.com/bots |
| 8 | 72 | 0.38 | 15 | 0.25 | http://www.majestic12.co.uk/bot.php?+ |
| 9 | 53 | 0.28 | 37 | 0.61 | Windows 95 |
| 10 | 42 | 0.22 | 3 | 0.05 | +http://www.seoprofiler.com/bot |
| 11 | 33 | 0.17 | 7 | 0.12 | +http://www.exabot.com/go/robot |
| 12 | 30 | 0.16 | 2 | 0.03 | +http://endb-consolidated.aihit.com/ |
| 13 | 30 | 0.16 | 15 | 0.25 | Windows 98 |
| 14 | 28 | 0.15 | 3 | 0.05 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 24 | 0.13 | 12 | 0.20 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 16 | 22 | 0.12 | 5 | 0.08 | X11 |
| 17 | 17 | 0.09 | 9 | 0.15 | ) - BrowseX (2.0.0 Windows |
| 18 | 15 | 0.08 | 0 | 0.00 | Linux 2.4.x |
| 19 | 14 | 0.07 | 1 | 0.02 | Intel Mac OS X 10.6 |
| 20 | 12 | 0.06 | 6 | 0.10 | http://crawler.sistrix.net/ |
| 21 | 11 | 0.06 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 22 | 11 | 0.06 | 1 | 0.02 | Android 2.3.5 |
| 23 | 9 | 0.05 | 2 | 0.03 | Windows XP |
| 24 | 9 | 0.05 | 9 | 0.15 | MSIE 5.5; Windows NT 5.0 |
| 25 | 8 | 0.04 | 4 | 0.07 | +http://siteexplorer.info/ |
| 26 | 7 | 0.04 | 3 | 0.05 | Windows 2000 |
| 27 | 7 | 0.04 | 2 | 0.03 | MSIE 5.5; Windows 95 |
| 28 | 6 | 0.03 | 3 | 0.05 | +http://www.yunyun.com/spider.html |
| 29 | 6 | 0.03 | 5 | 0.08 | Windows 3.1 |
| 30 | 4 | 0.02 | 4 | 0.07 | Windows ME |
| 31 | 3 | 0.02 | 3 | 0.05 | Linux i686 [unknown version] |
| 32 | 3 | 0.02 | 1 | 0.02 | +info@netcraft.com |
| 33 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 34 | 2 | 0.01 | 2 | 0.03 | Auto; Windows |
| 35 | 2 | 0.01 | 2 | 0.03 | http://www.searchmetrics.com/en/searchme... |
| 36 | 2 | 0.01 | 0 | 0.00 | Android |
| 37 | 2 | 0.01 | 1 | 0.02 | ScoutJet; +http://blekko.com/about/blekk... |
| 38 | 1 | 0.01 | 0 | 0.00 | Win32 |
| 39 | 1 | 0.01 | 1 | 0.02 | MSIE 5.5; Windows NT 4.0 |
