| Used Operating Systems |
| 1 | 6190 | 44.59 | 1999 | 37.21 | Windows NT |
| 2 | 1959 | 14.11 | 1857 | 34.57 | +http://www.baidu.com/search/spider.html |
| 3 | 1355 | 9.76 | 6 | 0.11 | +http://www.seoprofiler.com/bot |
| 4 | 1255 | 9.04 | 441 | 8.21 | +http://www.bing.com/bingbot.htm |
| 5 | 1156 | 8.33 | 566 | 10.54 | +http://www.google.com/bot.html |
| 6 | 588 | 4.24 | 190 | 3.54 | help@moz.com |
| 7 | 412 | 2.97 | 36 | 0.67 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 354 | 2.55 | 70 | 1.30 | +http://yandex.com/bots |
| 9 | 132 | 0.95 | 38 | 0.71 | ezooms.bot@gmail.com |
| 10 | 118 | 0.85 | 56 | 1.04 | +http://www.linkdex.com/about/bots/ |
| 11 | 58 | 0.42 | 2 | 0.04 | http://www.dataprovider.com/ |
| 12 | 54 | 0.39 | 10 | 0.19 | http://nlp.fi.muni.cz/projects/biwec/ |
| 13 | 48 | 0.35 | 24 | 0.45 | +http://www.easou.com/search/spider.html |
| 14 | 30 | 0.22 | 15 | 0.28 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 22 | 0.16 | 5 | 0.09 | X11 |
| 16 | 21 | 0.15 | 12 | 0.22 | +http://www.exabot.com/go/robot |
| 17 | 19 | 0.14 | 3 | 0.06 | http://www.searchmetrics.com/en/searchme... |
| 18 | 17 | 0.12 | 2 | 0.04 | Windows 98 |
| 19 | 15 | 0.11 | 14 | 0.26 | +http://www.semrush.com/bot.html |
| 20 | 9 | 0.06 | 0 | 0.00 | Android 2.3.5 |
| 21 | 6 | 0.04 | 2 | 0.04 | Auto; Windows |
| 22 | 6 | 0.04 | 5 | 0.09 | http://help.yahoo.com/help/us/ysearch/sl... |
| 23 | 6 | 0.04 | 3 | 0.06 | http://crawler.sistrix.net/ |
| 24 | 6 | 0.04 | 3 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 25 | 5 | 0.04 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 26 | 4 | 0.03 | 0 | 0.00 | Win32 |
| 27 | 4 | 0.03 | 0 | 0.00 | Android |
| 28 | 4 | 0.03 | 2 | 0.04 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 29 | 4 | 0.03 | 1 | 0.02 | +info@netcraft.com |
| 30 | 4 | 0.03 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 31 | 4 | 0.03 | 2 | 0.04 | +http://www.grapeshot.co.uk/crawler.php |
| 32 | 3 | 0.02 | 1 | 0.02 | AOL 9.7; AOLBuild 4343.55; Windows NT 6.... |
| 33 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 34 | 2 | 0.01 | 1 | 0.02 | +http://www.yunyun.com/spider.html |
| 35 | 2 | 0.01 | 2 | 0.04 | Linux i686 [unknown version] |
| 36 | 2 | 0.01 | 1 | 0.02 | +http://siteexplorer.info/ |
| 37 | 2 | 0.01 | 1 | 0.02 | +http://www.yunyun.com/SiteInfo.php?r=ab... |
| 38 | 1 | 0.01 | 0 | 0.00 | http://desktop.google.com/ |
| 39 | 1 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 40 | 1 | 0.01 | 1 | 0.02 | Windows 95 |
| 41 | 1 | 0.01 | 0 | 0.00 | Linux 2.4.x |
