| Used Operating Systems |
| 1 | 58978 | 56.10 | 4473 | 61.11 | Windows NT |
| 2 | 12700 | 12.08 | 185 | 2.53 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 12483 | 11.87 | 448 | 6.12 | +crawl@publiclibraryarchive.org |
| 4 | 7382 | 7.02 | 146 | 1.99 | +http://yandex.com/bots |
| 5 | 4244 | 4.04 | 357 | 4.88 | +http://ahrefs.com/robot/ |
| 6 | 1267 | 1.21 | 166 | 2.27 | +http://www.google.com/bot.html |
| 7 | 1163 | 1.11 | 17 | 0.23 | http://help.yahoo.com/help/us/ysearch/sl... |
| 8 | 1010 | 0.96 | 2 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 9 | 773 | 0.74 | 372 | 5.08 | Windows 95 |
| 10 | 614 | 0.58 | 2 | 0.03 | +http://webmeup-crawler.com/ |
| 11 | 520 | 0.49 | 42 | 0.57 | Windows 98 |
| 12 | 456 | 0.43 | 0 | 0.00 | Macintosh PPC |
| 13 | 431 | 0.41 | 336 | 4.59 | +http://www.baidu.com/search/spider.html |
| 14 | 422 | 0.40 | 0 | 0.00 | Linux i686 [unknown version] |
| 15 | 411 | 0.39 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 16 | 408 | 0.39 | 0 | 0.00 | Win32 |
| 17 | 206 | 0.20 | 62 | 0.85 | +http://www.linkdex.com/bots/ |
| 18 | 193 | 0.18 | 55 | 0.75 | +http://www.exabot.com/go/robot |
| 19 | 152 | 0.14 | 81 | 1.11 | Auto; Windows |
| 20 | 150 | 0.14 | 85 | 1.16 | MSIE 5.5; Windows NT 5.0 |
| 21 | 125 | 0.12 | 74 | 1.01 | ) - BrowseX (2.0.0 Windows |
| 22 | 123 | 0.12 | 75 | 1.02 | Windows 2000 |
| 23 | 118 | 0.11 | 69 | 0.94 | Windows CE |
| 24 | 118 | 0.11 | 56 | 0.77 | Windows 3.1 |
| 25 | 115 | 0.11 | 0 | 0.00 | Windows XP |
| 26 | 112 | 0.11 | 64 | 0.87 | Windows ME |
| 27 | 110 | 0.10 | 69 | 0.94 | MSIE 5.5; Windows NT 4.0 |
| 28 | 70 | 0.07 | 7 | 0.10 | X11 |
| 29 | 66 | 0.06 | 34 | 0.46 | +http://www.bing.com/bingbot.htm |
| 30 | 40 | 0.04 | 2 | 0.03 | Android 2.3.5 |
| 31 | 32 | 0.03 | 11 | 0.15 | http://www.opensiteexplorer.org/dotbot, ... |
| 32 | 28 | 0.03 | 4 | 0.05 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 33 | 24 | 0.02 | 2 | 0.03 | +http://filterdb.iss.net/crawler/ |
| 34 | 16 | 0.02 | 8 | 0.11 | +http://www.meanpath.com/meanpathbot.htm... |
| 35 | 12 | 0.01 | 3 | 0.04 | http://crawler.sistrix.net/ |
| 36 | 12 | 0.01 | 0 | 0.00 | FreeBSD [unknown version] |
| 37 | 12 | 0.01 | 6 | 0.08 | +http://duckduckgo.com |
| 38 | 8 | 0.01 | 4 | 0.05 | support.orangebot@orange.com |
| 39 | 8 | 0.01 | 0 | 0.00 | Solaris 2.4.x |
| 40 | 4 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 41 | 4 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 42 | 1 | 0.00 | 1 | 0.01 | America Online Browser 1.1; rev1.2; Wind... |
| 43 | 1 | 0.00 | 1 | 0.01 | Unknown |
| 44 | 1 | 0.00 | 0 | 0.00 | Macintosh |
