| Used Operating Systems |
| 1 | 5112 | 52.83 | 98 | 3.91 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2114 | 21.85 | 679 | 27.07 | Windows NT |
| 3 | 1066 | 11.02 | 997 | 39.75 | +http://www.baidu.com/search/spider.html |
| 4 | 450 | 4.65 | 260 | 10.37 | +http://www.google.com/bot.html |
| 5 | 320 | 3.31 | 169 | 6.74 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 6 | 266 | 2.75 | 155 | 6.18 | +http://www.bing.com/bingbot.htm |
| 7 | 86 | 0.89 | 31 | 1.24 | +http://www.linkdex.com/bots/ |
| 8 | 70 | 0.72 | 28 | 1.12 | +http://yandex.com/bots |
| 9 | 46 | 0.48 | 21 | 0.84 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 16 | 0.17 | 9 | 0.36 | +http://www.exabot.com/go/robot |
| 11 | 14 | 0.14 | 2 | 0.08 | http://filterdb.iss.net/crawler/ |
| 12 | 11 | 0.11 | 11 | 0.44 | Windows 95 |
| 13 | 10 | 0.10 | 3 | 0.12 | Windows 98 |
| 14 | 10 | 0.10 | 5 | 0.20 | +http://www.meanpath.com/meanpathbot.htm... |
| 15 | 9 | 0.09 | 3 | 0.12 | +http://OpenLinkProfiler.org/bot |
| 16 | 8 | 0.08 | 2 | 0.08 | +http://filterdb.iss.net/crawler/ |
| 17 | 6 | 0.06 | 1 | 0.04 | Linux [unknown version] |
| 18 | 5 | 0.05 | 5 | 0.20 | Auto; Windows |
| 19 | 5 | 0.05 | 5 | 0.20 | +http://domainsigma.com/robot |
| 20 | 4 | 0.04 | 2 | 0.08 | Windows CE |
| 21 | 4 | 0.04 | 2 | 0.08 | http://help.yahoo.com/help/us/ysearch/sl... |
| 22 | 4 | 0.04 | 0 | 0.00 | Android 2.3.5 |
| 23 | 4 | 0.04 | 2 | 0.08 | +http://duckduckgo.com |
| 24 | 3 | 0.03 | 1 | 0.04 | +http://ahrefs.com/robot/ |
| 25 | 3 | 0.03 | 2 | 0.08 | +http://www.semrush.com/bot.html |
| 26 | 3 | 0.03 | 1 | 0.04 | +http://webmeup-crawler.com/ |
| 27 | 3 | 0.03 | 0 | 0.00 | X11 |
| 28 | 3 | 0.03 | 3 | 0.12 | MSIE 5.5; Windows NT 4.0 |
| 29 | 2 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 30 | 2 | 0.02 | 2 | 0.08 | Windows ME |
| 31 | 2 | 0.02 | 0 | 0.00 | Windows XP |
| 32 | 2 | 0.02 | 2 | 0.08 | Linux i686 [unknown version] |
| 33 | 2 | 0.02 | 1 | 0.04 | +http://www.seokicks.de/robot.html |
| 34 | 2 | 0.02 | 1 | 0.04 | +info@netcraft.com |
| 35 | 2 | 0.02 | 0 | 0.00 | +http://fulltext.sblog.cz/screenshot/ |
| 36 | 2 | 0.02 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 37 | 1 | 0.01 | 1 | 0.04 | crawler@mixrank.com |
| 38 | 1 | 0.01 | 1 | 0.04 | Windows 2000 |
| 39 | 1 | 0.01 | 1 | 0.04 | Windows 3.1 |
| 40 | 1 | 0.01 | 1 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 41 | 1 | 0.01 | 0 | 0.00 | http://drive.google.com |
| 42 | 1 | 0.01 | 1 | 0.04 | +http://megaindex.com/crawler |
