| Used Operating Systems |
| 1 | 4306 | 34.51 | 143 | 2.92 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2706 | 21.69 | 2307 | 47.11 | +http://www.baidu.com/search/spider.html |
| 3 | 2539 | 20.35 | 1400 | 28.59 | Windows NT |
| 4 | 922 | 7.39 | 429 | 8.76 | +http://www.bing.com/bingbot.htm |
| 5 | 579 | 4.64 | 48 | 0.98 | +http://yandex.com/bots |
| 6 | 484 | 3.88 | 270 | 5.51 | +http://www.google.com/bot.html |
| 7 | 239 | 1.92 | 62 | 1.27 | +http://www.linkdex.com/bots/ |
| 8 | 125 | 1.00 | 46 | 0.94 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 66 | 0.53 | 2 | 0.04 | J2ME/MIDP |
| 10 | 64 | 0.51 | 29 | 0.59 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 58 | 0.46 | 31 | 0.63 | +http://ahrefs.com/robot/ |
| 12 | 45 | 0.36 | 23 | 0.47 | +http://www.exabot.com/go/robot |
| 13 | 42 | 0.34 | 20 | 0.41 | +http://www.meanpath.com/meanpathbot.htm... |
| 14 | 35 | 0.28 | 15 | 0.31 | +http://fulltext.sblog.cz/ |
| 15 | 28 | 0.22 | 2 | 0.04 | +http://www.seokicks.de/robot.html |
| 16 | 24 | 0.19 | 0 | 0.00 | +http://www.easou.com/search/spider.html |
| 17 | 22 | 0.18 | 1 | 0.02 | Website Thumbnail Generator; +http://web... |
| 18 | 21 | 0.17 | 16 | 0.33 | +http://wmaid.com/explore/ |
| 19 | 16 | 0.13 | 1 | 0.02 | http://www.lipperhey.com/ |
| 20 | 16 | 0.13 | 8 | 0.16 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 21 | 16 | 0.13 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 22 | 13 | 0.10 | 1 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 23 | 12 | 0.10 | 2 | 0.04 | +http://siteexplorer.info/ |
| 24 | 10 | 0.08 | 2 | 0.04 | +http://getdownload.ws |
| 25 | 8 | 0.06 | 2 | 0.04 | +http://uni5download.com |
| 26 | 8 | 0.06 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 27 | 8 | 0.06 | 4 | 0.08 | +http://help.coccoc.com/ |
| 28 | 8 | 0.06 | 7 | 0.14 | +info@netcraft.com |
| 29 | 7 | 0.06 | 3 | 0.06 | Windows 98 |
| 30 | 6 | 0.05 | 2 | 0.04 | +http://www.proximic.com/info/spider.php |
| 31 | 6 | 0.05 | 3 | 0.06 | http://crawler.sistrix.net/ |
| 32 | 6 | 0.05 | 1 | 0.02 | Linux [unknown version] |
| 33 | 5 | 0.04 | 1 | 0.02 | +http://overx50.com |
| 34 | 4 | 0.03 | 2 | 0.04 | +http://www.grapeshot.co.uk/crawler.php |
| 35 | 3 | 0.02 | 3 | 0.06 | +http://pmoz.info/doc/botinfo.htm |
| 36 | 3 | 0.02 | 3 | 0.06 | +http://fb02itsscan.fh-muenster.de |
| 37 | 3 | 0.02 | 1 | 0.02 | Linux 2.4.x |
| 38 | 3 | 0.02 | 1 | 0.02 | +http://downloaflare.biz |
| 39 | 3 | 0.02 | 3 | 0.06 | Linux i686 [unknown version] |
| 40 | 3 | 0.02 | 1 | 0.02 | +http://prlog.ru/ |
| 41 | 2 | 0.02 | 0 | 0.00 | Win32 |
| 42 | 2 | 0.02 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 43 | 1 | 0.01 | 1 | 0.02 | +http://www.xovibot.net/ |
