| Used Operating Systems |
| 1 | 3715 | 35.77 | 1679 | 31.27 | Windows NT |
| 2 | 2743 | 26.41 | 2351 | 43.79 | +http://www.baidu.com/search/spider.html |
| 3 | 1215 | 11.70 | 549 | 10.23 | +http://www.bing.com/bingbot.htm |
| 4 | 728 | 7.01 | 128 | 2.38 | http://www.majestic12.co.uk/bot.php?+ |
| 5 | 588 | 5.66 | 325 | 6.05 | +http://www.google.com/bot.html |
| 6 | 360 | 3.47 | 44 | 0.82 | +http://yandex.com/bots |
| 7 | 261 | 2.51 | 81 | 1.51 | +http://www.linkdex.com/bots/ |
| 8 | 176 | 1.69 | 2 | 0.04 | BlackBerry |
| 9 | 155 | 1.49 | 58 | 1.08 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 60 | 0.58 | 31 | 0.58 | +http://ahrefs.com/robot/ |
| 11 | 50 | 0.48 | 2 | 0.04 | +http://webmeup-crawler.com/ |
| 12 | 46 | 0.44 | 20 | 0.37 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 37 | 0.36 | 17 | 0.32 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 34 | 0.33 | 2 | 0.04 | http://crawler.007ac9.net/ |
| 15 | 30 | 0.29 | 15 | 0.28 | +http://www.exabot.com/go/robot |
| 16 | 30 | 0.29 | 14 | 0.26 | +http://fulltext.sblog.cz/ |
| 17 | 26 | 0.25 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 18 | 22 | 0.21 | 0 | 0.00 | +http://www.easou.com/search/spider.html |
| 19 | 17 | 0.16 | 8 | 0.15 | +http://help.coccoc.com/ |
| 20 | 9 | 0.09 | 3 | 0.06 | crawler@unister.de |
| 21 | 8 | 0.08 | 4 | 0.07 | http://crawler.sistrix.net/ |
| 22 | 7 | 0.07 | 1 | 0.02 | +http://mydownloadengine.com |
| 23 | 6 | 0.06 | 2 | 0.04 | +http://getdownload.ws |
| 24 | 6 | 0.06 | 2 | 0.04 | +http://downloaflare.biz |
| 25 | 5 | 0.05 | 4 | 0.07 | +info@netcraft.com |
| 26 | 5 | 0.05 | 5 | 0.09 | +http://wmaid.com/explore/ |
| 27 | 5 | 0.05 | 1 | 0.02 | +http://siteexplorer.info/ |
| 28 | 4 | 0.04 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 29 | 4 | 0.04 | 2 | 0.04 | Windows XP |
| 30 | 4 | 0.04 | 0 | 0.00 | Windows 98 |
| 31 | 3 | 0.03 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 32 | 3 | 0.03 | 3 | 0.06 | Linux i686 [unknown version] |
| 33 | 3 | 0.03 | 1 | 0.02 | +http://overx50.com/ |
| 34 | 2 | 0.02 | 1 | 0.02 | +http://www.netseer.com/crawler.html; cr... |
| 35 | 2 | 0.02 | 0 | 0.00 | Macintosh PPC |
| 36 | 2 | 0.02 | 2 | 0.04 | +http://fb02itsscan.fh-muenster.de |
| 37 | 2 | 0.02 | 2 | 0.04 | +http://pmoz.info/doc/botinfo.htm |
| 38 | 2 | 0.02 | 2 | 0.04 | Intel Mac OS X 10.4 |
| 39 | 2 | 0.02 | 0 | 0.00 | +http://images.weserv.nl/ |
| 40 | 2 | 0.02 | 2 | 0.04 | Linux [unknown version] |
| 41 | 2 | 0.02 | 2 | 0.04 | WinHttp.WinHttpRequest.5 |
| 42 | 2 | 0.02 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 43 | 2 | 0.02 | 1 | 0.02 | +http://www.idmarch.org/bot.html |
