| Used Operating Systems |
| 1 | 24626 | 30.02 | 154 | 0.64 | http://mj12bot.com/ |
| 2 | 18904 | 23.05 | 14397 | 59.47 | +http://ahrefs.com/robot/ |
| 3 | 10788 | 13.15 | 1357 | 5.61 | Windows NT |
| 4 | 7750 | 9.45 | 6283 | 25.95 | +http://www.baidu.com/search/spider.html |
| 5 | 6710 | 8.18 | 36 | 0.15 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 3446 | 4.20 | 1 | 0.00 | +http://megaindex.com/crawler |
| 7 | 2706 | 3.30 | 712 | 2.94 | +http://www.google.com/bot.html |
| 8 | 2037 | 2.48 | 3 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 9 | 1316 | 1.60 | 298 | 1.23 | +http://www.bing.com/bingbot.htm |
| 10 | 1170 | 1.43 | 266 | 1.10 | +http://www.linkdex.com/bots/ |
| 11 | 1144 | 1.39 | 258 | 1.07 | +http://yandex.com/bots |
| 12 | 392 | 0.48 | 2 | 0.01 | +http://siteexplorer.info/Backlink-Check... |
| 13 | 366 | 0.45 | 151 | 0.62 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 239 | 0.29 | 74 | 0.31 | +http://www.exabot.com/go/robot |
| 15 | 90 | 0.11 | 37 | 0.15 | http://www.opensiteexplorer.org/dotbot, ... |
| 16 | 58 | 0.07 | 21 | 0.09 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 48 | 0.06 | 46 | 0.19 | Windows 95 |
| 18 | 46 | 0.06 | 3 | 0.01 | +http://sur.ly/bot.html |
| 19 | 35 | 0.04 | 23 | 0.10 | Windows 98 |
| 20 | 30 | 0.04 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 21 | 13 | 0.02 | 4 | 0.02 | Windows XP |
| 22 | 11 | 0.01 | 11 | 0.05 | Windows CE |
| 23 | 11 | 0.01 | 10 | 0.04 | +info@netcraft.com |
| 24 | 10 | 0.01 | 9 | 0.04 | Windows 2000 |
| 25 | 10 | 0.01 | 1 | 0.00 | http://filterdb.iss.net/crawler/ |
| 26 | 7 | 0.01 | 7 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 27 | 7 | 0.01 | 7 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 28 | 5 | 0.01 | 5 | 0.02 | Windows ME |
| 29 | 4 | 0.00 | 3 | 0.01 | Linux 2.4.x |
| 30 | 4 | 0.00 | 4 | 0.02 | Windows 3.1 |
| 31 | 4 | 0.00 | 3 | 0.01 | Linux i686 [unknown version] |
| 32 | 4 | 0.00 | 0 | 0.00 | +http://www.xovibot.net/ |
| 33 | 4 | 0.00 | 2 | 0.01 | +http://duckduckgo.com |
| 34 | 3 | 0.00 | 3 | 0.01 | Macintosh PPC |
| 35 | 3 | 0.00 | 3 | 0.01 | Auto; Windows |
| 36 | 3 | 0.00 | 2 | 0.01 | Macintosh |
| 37 | 3 | 0.00 | 3 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 38 | 2 | 0.00 | 1 | 0.00 | MSIE 5.0; Windows 98; SiteCoach 1.0 |
| 39 | 1 | 0.00 | 1 | 0.00 | OS/2 |
| 40 | 1 | 0.00 | 1 | 0.00 | OSF1 V4.0 alpha |
| 41 | 1 | 0.00 | 1 | 0.00 | +http://8pw.ru/ |
| 42 | 1 | 0.00 | 0 | 0.00 | Linux 2.0.x |
| 43 | 1 | 0.00 | 1 | 0.00 | http://nmap.org/book/nse.html |
| 44 | 1 | 0.00 | 1 | 0.00 | +http://8pw.ru/virus |
| 45 | 1 | 0.00 | 1 | 0.00 | Linux 2.2.x |
| 46 | 1 | 0.00 | 1 | 0.00 | OSF1 V5.1 alpha |
| 47 | 1 | 0.00 | 0 | 0.00 | SunOS 4.1.x |
| 48 | 1 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 49 | 1 | 0.00 | 1 | 0.00 | Solaris 8.x |
