| Used Operating Systems |
| 1 | 13655 | 39.13 | 247 | 3.59 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8110 | 23.24 | 1935 | 28.15 | Windows NT |
| 3 | 5145 | 14.75 | 1917 | 27.89 | +http://www.baidu.com/search/spider.html |
| 4 | 3812 | 10.92 | 1759 | 25.59 | +http://www.google.com/bot.html |
| 5 | 1294 | 3.71 | 378 | 5.50 | +http://www.bing.com/bingbot.htm |
| 6 | 887 | 2.54 | 86 | 1.25 | +http://yandex.com/bots |
| 7 | 398 | 1.14 | 113 | 1.64 | +http://ahrefs.com/robot/ |
| 8 | 398 | 1.14 | 86 | 1.25 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 303 | 0.87 | 98 | 1.43 | +http://www.linkdex.com/bots/ |
| 10 | 207 | 0.59 | 34 | 0.49 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 132 | 0.38 | 47 | 0.68 | +http://www.exabot.com/go/robot |
| 12 | 88 | 0.25 | 12 | 0.17 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 78 | 0.22 | 38 | 0.55 | +http://www.meanpath.com/meanpathbot.htm... |
| 14 | 42 | 0.12 | 14 | 0.20 | Windows 95 |
| 15 | 39 | 0.11 | 9 | 0.13 | Windows 98 |
| 16 | 29 | 0.08 | 9 | 0.13 | +http://help.coccoc.com/ |
| 17 | 24 | 0.07 | 18 | 0.26 | +info@netcraft.com |
| 18 | 18 | 0.05 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 19 | 16 | 0.05 | 1 | 0.01 | Linux [unknown version] |
| 20 | 15 | 0.04 | 5 | 0.07 | Windows 2000 |
| 21 | 15 | 0.04 | 4 | 0.06 | Windows XP |
| 22 | 14 | 0.04 | 2 | 0.03 | +http://overx50.com |
| 23 | 13 | 0.04 | 1 | 0.01 | +http://siteexplorer.info/ |
| 24 | 12 | 0.03 | 4 | 0.06 | Auto; Windows |
| 25 | 12 | 0.03 | 6 | 0.09 | +http://OpenLinkProfiler.org/bot |
| 26 | 12 | 0.03 | 4 | 0.06 | Windows 3.1 |
| 27 | 11 | 0.03 | 10 | 0.15 | +http://pmoz.info/doc/botinfo.htm |
| 28 | 10 | 0.03 | 5 | 0.07 | http://crawler.sistrix.net/ |
| 29 | 10 | 0.03 | 2 | 0.03 | http://crawler.007ac9.net/ |
| 30 | 10 | 0.03 | 2 | 0.03 | +http://mydownloadengine.com |
| 31 | 9 | 0.03 | 3 | 0.04 | Windows ME |
| 32 | 8 | 0.02 | 2 | 0.03 | +http://www.warebay.com/bot.html |
| 33 | 8 | 0.02 | 0 | 0.00 | Windows 9. |
| 34 | 8 | 0.02 | 4 | 0.06 | +http://fulltext.sblog.cz/ |
| 35 | 7 | 0.02 | 0 | 0.00 | Linux i686 [unknown version] |
| 36 | 6 | 0.02 | 2 | 0.03 | Windows CE |
| 37 | 6 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 38 | 6 | 0.02 | 3 | 0.04 | +http://botw.org |
| 39 | 5 | 0.01 | 4 | 0.06 | +http://www.xovibot.net/ |
| 40 | 4 | 0.01 | 2 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 41 | 2 | 0.01 | 1 | 0.01 | http://www.mojeek.com/bot.html |
| 42 | 2 | 0.01 | 0 | 0.00 | X11; Linux i686; en |
| 43 | 2 | 0.01 | 1 | 0.01 | +https://www.mojeek.com/bot.html |
| 44 | 2 | 0.01 | 1 | 0.01 | http://www.botje.com/plukkie.htm |
| 45 | 1 | 0.00 | 1 | 0.01 | webcrawler at wise-guys dot nl; http://w... |
| 46 | 1 | 0.00 | 0 | 0.00 | webcrawler at wise-guys dot nl; http://w... |
| 47 | 1 | 0.00 | 0 | 0.00 | J2ME/MIDP |
| 48 | 1 | 0.00 | 0 | 0.00 | Macintosh PPC |
| 49 | 1 | 0.00 | 1 | 0.01 | +http://www.linkpad.ru |
| 50 | 1 | 0.00 | 0 | 0.00 | Linux 2.4.x |
| 51 | 1 | 0.00 | 1 | 0.01 | +http://fb02itsscan.fh-muenster.de |
| 52 | 1 | 0.00 | 1 | 0.01 | X11 |
| 53 | 1 | 0.00 | 1 | 0.01 | +http://www.drlinkcheck.com/ |
