| Used Operating Systems by Visits |
| 1 | 3988 | 11.22 | 2785 | 48.87 | +http://www.baidu.com/search/spider.html |
| 2 | 3979 | 11.19 | 1681 | 29.50 | Windows NT |
| 3 | 683 | 1.92 | 305 | 5.35 | +http://www.google.com/bot.html |
| 4 | 542 | 1.52 | 231 | 4.05 | +http://ahrefs.com/robot/ |
| 5 | 465 | 1.31 | 226 | 3.97 | +http://www.bing.com/bingbot.htm |
| 6 | 25077 | 70.52 | 192 | 3.37 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 107 | 0.30 | 76 | 1.33 | Windows 95 |
| 8 | 264 | 0.74 | 33 | 0.58 | +http://yandex.com/bots |
| 9 | 25 | 0.07 | 23 | 0.40 | Windows 3.1 |
| 10 | 68 | 0.19 | 20 | 0.35 | Windows 98 |
| 11 | 18 | 0.05 | 18 | 0.32 | Windows CE |
| 12 | 18 | 0.05 | 17 | 0.30 | Windows 2000 |
| 13 | 13 | 0.04 | 13 | 0.23 | Auto; Windows |
| 14 | 13 | 0.04 | 13 | 0.23 | MSIE 5.5; Windows NT 5.0 |
| 15 | 18 | 0.05 | 12 | 0.21 | MSIE 5.5; Windows NT 4.0 |
| 16 | 30 | 0.08 | 10 | 0.18 | +http://OpenLinkProfiler.org/bot |
| 17 | 14 | 0.04 | 9 | 0.16 | ) - BrowseX (2.0.0 Windows |
| 18 | 13 | 0.04 | 8 | 0.14 | Windows ME |
| 19 | 21 | 0.06 | 4 | 0.07 | +http://www.linkdex.com/bots/ |
| 20 | 8 | 0.02 | 4 | 0.07 | Windows XP |
| 21 | 8 | 0.02 | 4 | 0.07 | +http://www.meanpath.com/meanpathbot.htm... |
| 22 | 8 | 0.02 | 4 | 0.07 | +http://duckduckgo.com |
| 23 | 1 | 0.00 | 1 | 0.02 | OpenBSD [unknown version] |
| 24 | 2 | 0.01 | 1 | 0.02 | +http://gimmeusa-update.com/crawler |
| 25 | 2 | 0.01 | 1 | 0.02 | PPC Mac OS X Mach-O |
| 26 | 2 | 0.01 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 27 | 4 | 0.01 | 1 | 0.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 28 | 1 | 0.00 | 1 | 0.02 | Linux i686 [unknown version] |
| 29 | 3 | 0.01 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 30 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 31 | 1 | 0.00 | 1 | 0.02 | X11 |
| 32 | 79 | 0.22 | 1 | 0.02 | Linux i586 [unknown version] |
| 33 | 1 | 0.00 | 1 | 0.02 | +http://advbot.org/bot.html |
| 34 | 1 | 0.00 | 0 | 0.00 | FreeBSD 3.x |
| 35 | 80 | 0.22 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
