| Used Operating Systems |
| 1 | 12691 | 41.74 | 186 | 4.35 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4943 | 16.26 | 1572 | 36.75 | Windows NT |
| 3 | 3943 | 12.97 | 162 | 3.79 | http://www.opensiteexplorer.org/dotbot, ... |
| 4 | 3221 | 10.59 | 1512 | 35.34 | +http://www.baidu.com/search/spider.html |
| 5 | 1245 | 4.09 | 71 | 1.66 | Windows 98 |
| 6 | 1099 | 3.61 | 183 | 4.28 | +http://ahrefs.com/robot/ |
| 7 | 600 | 1.97 | 3 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 8 | 482 | 1.59 | 133 | 3.11 | +http://www.linkdex.com/bots/ |
| 9 | 446 | 1.47 | 106 | 2.48 | +http://www.google.com/bot.html |
| 10 | 400 | 1.32 | 55 | 1.29 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 384 | 1.26 | 67 | 1.57 | +http://yandex.com/bots |
| 12 | 316 | 1.04 | 128 | 2.99 | +http://www.bing.com/bingbot.htm |
| 13 | 225 | 0.74 | 57 | 1.33 | +http://www.exabot.com/go/robot |
| 14 | 194 | 0.64 | 1 | 0.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 42 | 0.14 | 15 | 0.35 | Linux i686 [unknown version] |
| 16 | 38 | 0.12 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 17 | 30 | 0.10 | 10 | 0.23 | Linux [unknown version] |
| 18 | 26 | 0.09 | 0 | 0.00 | +http://siteexplorer.info/ |
| 19 | 16 | 0.05 | 2 | 0.05 | +http://www.linkpad.ru |
| 20 | 8 | 0.03 | 4 | 0.09 | http://crawler.sistrix.net/ |
| 21 | 8 | 0.03 | 2 | 0.05 | X11 |
| 22 | 8 | 0.03 | 4 | 0.09 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 7 | 0.02 | 0 | 0.00 | Macintosh PPC |
| 24 | 6 | 0.02 | 2 | 0.05 | Windows 95 |
| 25 | 5 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 4 | 0.01 | 0 | 0.00 | not on Windows server; |
| 27 | 4 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 28 | 4 | 0.01 | 0 | 0.00 | Windows ME |
| 29 | 3 | 0.01 | 1 | 0.02 | Android 2.3.5 |
| 30 | 2 | 0.01 | 0 | 0.00 | Windows CE |
| 31 | 2 | 0.01 | 2 | 0.05 | +info@netcraft.com |
| 32 | 2 | 0.01 | 0 | 0.00 | +http://www.loadtime.net/bot.html |
| 33 | 2 | 0.01 | 0 | 0.00 | Amiga-AWeb |
