| Used Operating Systems |
| 1 | 42816 | 52.67 | 1814 | 49.12 | Windows NT |
| 2 | 9655 | 11.88 | 303 | 8.20 | +crawl@publiclibraryarchive.org |
| 3 | 8552 | 10.52 | 218 | 5.90 | +http://yandex.com/bots |
| 4 | 8379 | 10.31 | 163 | 4.41 | http://www.majestic12.co.uk/bot.php?+ |
| 5 | 2987 | 3.67 | 265 | 7.18 | +http://ahrefs.com/robot/ |
| 6 | 2024 | 2.49 | 4 | 0.11 | +http://OpenLinkProfiler.org/bot |
| 7 | 992 | 1.22 | 0 | 0.00 | FreeBSD [unknown version] |
| 8 | 942 | 1.16 | 6 | 0.16 | Linux i686 [unknown version] |
| 9 | 905 | 1.11 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 10 | 892 | 1.10 | 3 | 0.08 | Windows 95 |
| 11 | 680 | 0.84 | 192 | 5.20 | +http://www.google.com/bot.html |
| 12 | 569 | 0.70 | 125 | 3.38 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 501 | 0.62 | 375 | 10.15 | +http://www.baidu.com/search/spider.html |
| 14 | 276 | 0.34 | 2 | 0.05 | Linux [unknown version] |
| 15 | 184 | 0.23 | 56 | 1.52 | +http://www.linkdex.com/bots/ |
| 16 | 142 | 0.17 | 3 | 0.08 | http://crawler.sistrix.net/ |
| 17 | 129 | 0.16 | 45 | 1.22 | http://help.yahoo.com/help/us/ysearch/sl... |
| 18 | 126 | 0.16 | 0 | 0.00 | Macintosh |
| 19 | 92 | 0.11 | 39 | 1.06 | +http://www.exabot.com/go/robot |
| 20 | 85 | 0.10 | 8 | 0.22 | Windows 98 |
| 21 | 82 | 0.10 | 5 | 0.14 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 22 | 48 | 0.06 | 0 | 0.00 | Solaris 9.x |
| 23 | 48 | 0.06 | 23 | 0.62 | +http://duckduckgo.com |
| 24 | 38 | 0.05 | 20 | 0.54 | +http://www.bing.com/bingbot.htm |
| 25 | 28 | 0.03 | 0 | 0.00 | BeOS BePC |
| 26 | 24 | 0.03 | 0 | 0.00 | Win32 |
| 27 | 13 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 28 | 10 | 0.01 | 0 | 0.00 | Solaris 2.4.x |
| 29 | 8 | 0.01 | 0 | 0.00 | Windows CE |
| 30 | 8 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 31 | 8 | 0.01 | 0 | 0.00 | i686 Linux; 20020515 |
| 32 | 8 | 0.01 | 2 | 0.05 | X11 |
| 33 | 8 | 0.01 | 4 | 0.11 | +http://www.meanpath.com/meanpathbot.htm... |
| 34 | 6 | 0.01 | 0 | 0.00 | OS/2 |
| 35 | 4 | 0.00 | 4 | 0.11 | Windows 3.1 |
| 36 | 4 | 0.00 | 4 | 0.11 | MSIE 5.5; Windows NT 4.0 |
| 37 | 2 | 0.00 | 2 | 0.05 | Macintosh; Intel Mac OS X 10_7_3; Triden... |
| 38 | 2 | 0.00 | 2 | 0.05 | Windows XP |
| 39 | 2 | 0.00 | 1 | 0.03 | Android 2.3.5 |
| 40 | 2 | 0.00 | 2 | 0.05 | +info@netcraft.com |
| 41 | 2 | 0.00 | 2 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 42 | 1 | 0.00 | 0 | 0.00 | America Online Browser 1.1; rev1.2; Wind... |
| 43 | 1 | 0.00 | 1 | 0.03 | Unknown |
