| Used Operating Systems |
| 1 | 18334 | 49.19 | 242 | 4.42 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 7197 | 19.31 | 1631 | 29.78 | +http://www.baidu.com/search/spider.html |
| 3 | 4076 | 10.94 | 1405 | 25.66 | Windows NT |
| 4 | 3067 | 8.23 | 1337 | 24.42 | +http://www.google.com/bot.html |
| 5 | 1466 | 3.93 | 361 | 6.59 | +http://www.bing.com/bingbot.htm |
| 6 | 676 | 1.81 | 49 | 0.89 | +http://yandex.com/bots |
| 7 | 430 | 1.15 | 84 | 1.53 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 281 | 0.75 | 7 | 0.13 | http://crawler.007ac9.net/ |
| 9 | 265 | 0.71 | 82 | 1.50 | +http://www.linkdex.com/bots/ |
| 10 | 262 | 0.70 | 63 | 1.15 | MSIE 5.5; Windows NT 5.0 |
| 11 | 244 | 0.65 | 30 | 0.55 | +http://ahrefs.com/robot/ |
| 12 | 208 | 0.56 | 23 | 0.42 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 170 | 0.46 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 14 | 150 | 0.40 | 40 | 0.73 | +http://www.exabot.com/go/robot |
| 15 | 80 | 0.21 | 17 | 0.31 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 79 | 0.21 | 4 | 0.07 | +http://indonesiancoder.com |
| 17 | 64 | 0.17 | 32 | 0.58 | +http://www.meanpath.com/meanpathbot.htm... |
| 18 | 45 | 0.12 | 22 | 0.40 | +http://help.coccoc.com/ |
| 19 | 18 | 0.05 | 3 | 0.05 | +http://plus5files.net |
| 20 | 13 | 0.03 | 1 | 0.02 | +http://siteexplorer.info/ |
| 21 | 12 | 0.03 | 2 | 0.04 | +http://mono.name |
| 22 | 11 | 0.03 | 0 | 0.00 | Windows 98 |
| 23 | 10 | 0.03 | 4 | 0.07 | +info@netcraft.com |
| 24 | 9 | 0.02 | 3 | 0.05 | +http://www.profound.net/domainappender |
| 25 | 8 | 0.02 | 8 | 0.15 | +http://pmoz.info/doc/botinfo.htm |
| 26 | 8 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 27 | 8 | 0.02 | 1 | 0.02 | Linux i686 [unknown version] |
| 28 | 8 | 0.02 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 29 | 8 | 0.02 | 1 | 0.02 | +http://fulltext.sblog.cz/ |
| 30 | 6 | 0.02 | 1 | 0.02 | +http://getdownload.ws |
| 31 | 6 | 0.02 | 3 | 0.05 | http://crawler.sistrix.net/ |
| 32 | 6 | 0.02 | 1 | 0.02 | +http://galaxydownloads.co |
| 33 | 6 | 0.02 | 2 | 0.04 | Windows 3.1 |
| 34 | 5 | 0.01 | 0 | 0.00 | Win32 |
| 35 | 5 | 0.01 | 2 | 0.04 | ScoutJet; +http://blekko.com/about/blekk... |
| 36 | 4 | 0.01 | 0 | 0.00 | Windows 9. |
| 37 | 4 | 0.01 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 38 | 4 | 0.01 | 2 | 0.04 | +http://botw.org |
| 39 | 3 | 0.01 | 3 | 0.05 | +http://fb02itsscan.fh-muenster.de |
| 40 | 3 | 0.01 | 1 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 41 | 2 | 0.01 | 2 | 0.04 | crawler@mixrank.com |
| 42 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 43 | 2 | 0.01 | 1 | 0.02 | Mail.RU_Bot/Robots; +http://go.mail.ru/h... |
| 44 | 2 | 0.01 | 0 | 0.00 | apps-presentations; +http://docs.google.... |
| 45 | 2 | 0.01 | 1 | 0.02 | Android 2.3.5 |
| 46 | 2 | 0.01 | 1 | 0.02 | Linux i586 [unknown version] |
| 47 | 1 | 0.00 | 1 | 0.02 | Linux [unknown version] |
| 48 | 1 | 0.00 | 0 | 0.00 | Linux 2.4.x |
| 49 | 1 | 0.00 | 1 | 0.02 | +http://www.xovibot.net/ |
