| Used Operating Systems |
| 1 | 4890 | 41.13 | 2723 | 36.50 | Windows NT |
| 2 | 4025 | 33.85 | 3506 | 46.99 | +http://www.baidu.com/search/spider.html |
| 3 | 1070 | 9.00 | 616 | 8.26 | +http://www.google.com/bot.html |
| 4 | 663 | 5.58 | 56 | 0.75 | +http://yandex.com/bots |
| 5 | 134 | 1.13 | 55 | 0.74 | http://www.opensiteexplorer.org/dotbot, ... |
| 6 | 126 | 1.06 | 66 | 0.88 | +http://www.bing.com/bingbot.htm |
| 7 | 102 | 0.86 | 5 | 0.07 | Android |
| 8 | 98 | 0.82 | 28 | 0.38 | http://www.majestic12.co.uk/bot.php?+ |
| 9 | 87 | 0.73 | 81 | 1.09 | Windows 95 |
| 10 | 65 | 0.55 | 60 | 0.80 | +http://www.easou.com/search/spider.html |
| 11 | 54 | 0.45 | 19 | 0.25 | Windows 98 |
| 12 | 48 | 0.40 | 20 | 0.27 | +http://ahrefs.com/robot/ |
| 13 | 47 | 0.40 | 2 | 0.03 | +http://filterdb.iss.net/crawler/ |
| 14 | 47 | 0.40 | 7 | 0.09 | +http://help.coccoc.com/ |
| 15 | 41 | 0.34 | 20 | 0.27 | +http://www.exabot.com/go/robot |
| 16 | 33 | 0.28 | 14 | 0.19 | +http://fulltext.sblog.cz/ |
| 17 | 31 | 0.26 | 20 | 0.27 | +http://www.linkdex.com/bots/ |
| 18 | 28 | 0.24 | 11 | 0.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 19 | 27 | 0.23 | 14 | 0.19 | http://help.yahoo.com/help/us/ysearch/sl... |
| 20 | 26 | 0.22 | 13 | 0.17 | +http://www.meanpath.com/meanpathbot.htm... |
| 21 | 24 | 0.20 | 3 | 0.04 | http://www.searchmetrics.com/en/searchme... |
| 22 | 22 | 0.19 | 5 | 0.07 | +http://siteexplorer.info/ |
| 23 | 16 | 0.13 | 1 | 0.01 | Windows XP |
| 24 | 16 | 0.13 | 16 | 0.21 | MSIE 5.5; Windows NT 5.0 |
| 25 | 15 | 0.13 | 15 | 0.20 | Windows CE |
| 26 | 13 | 0.11 | 11 | 0.15 | MSIE 5.5; Windows NT 4.0 |
| 27 | 12 | 0.10 | 7 | 0.09 | Linux [unknown version] |
| 28 | 10 | 0.08 | 10 | 0.13 | Windows ME |
| 29 | 9 | 0.08 | 8 | 0.11 | Windows 2000 |
| 30 | 9 | 0.08 | 1 | 0.01 | +http://endb-consolidated.aihit.com/ |
| 31 | 9 | 0.08 | 3 | 0.04 | +http://inload.me |
| 32 | 8 | 0.07 | 1 | 0.01 | +http://www.seokicks.de/robot.html |
| 33 | 8 | 0.07 | 8 | 0.11 | ) - BrowseX (2.0.0 Windows |
| 34 | 7 | 0.06 | 7 | 0.09 | Windows 3.1 |
| 35 | 7 | 0.06 | 2 | 0.03 | Android 2.3.5 |
| 36 | 7 | 0.06 | 6 | 0.08 | +http://www.xovibot.net/ |
| 37 | 6 | 0.05 | 6 | 0.08 | Auto; Windows |
| 38 | 6 | 0.05 | 0 | 0.00 | Windows 9. |
| 39 | 5 | 0.04 | 1 | 0.01 | +http://overx50.com |
| 40 | 5 | 0.04 | 1 | 0.01 | X11 |
| 41 | 4 | 0.03 | 1 | 0.01 | +http://uni5download.com |
| 42 | 4 | 0.03 | 2 | 0.03 | +http://wmaid.com/explore/ |
| 43 | 4 | 0.03 | 2 | 0.03 | +http://nlp.fi.muni.cz/projects/biwec/ |
| 44 | 4 | 0.03 | 1 | 0.01 | +http://mydownloadengine.com |
| 45 | 3 | 0.03 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 46 | 3 | 0.03 | 1 | 0.01 | +http://downloaflare.biz |
| 47 | 2 | 0.02 | 1 | 0.01 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 48 | 2 | 0.02 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 49 | 2 | 0.02 | 1 | 0.01 | +http://www.netseer.com/crawler.html; cr... |
| 50 | 2 | 0.02 | 1 | 0.01 | +info@netcraft.com |
| 51 | 2 | 0.02 | 2 | 0.03 | http://blog.wasalive.com/wasalive-bots/ |
| 52 | 1 | 0.01 | 1 | 0.01 | +http://fb02itsscan.fh-muenster.de |
| 53 | 1 | 0.01 | 0 | 0.00 | +; |
