| Used Operating Systems |
| 1 | 20611 | 31.01 | 73 | 0.47 | +http://www.warebay.com/bot.html |
| 2 | 16262 | 24.47 | 165 | 1.06 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 14666 | 22.06 | 10834 | 69.78 | +http://ahrefs.com/robot/ |
| 4 | 3387 | 5.10 | 499 | 3.21 | +http://www.bing.com/bingbot.htm |
| 5 | 3187 | 4.79 | 878 | 5.66 | Windows NT |
| 6 | 2692 | 4.05 | 2037 | 13.12 | +http://www.baidu.com/search/spider.html |
| 7 | 2111 | 3.18 | 289 | 1.86 | +http://www.google.com/bot.html |
| 8 | 1003 | 1.51 | 1 | 0.01 | http://crawler.007ac9.net/ |
| 9 | 945 | 1.42 | 233 | 1.50 | +http://www.linkdex.com/bots/ |
| 10 | 421 | 0.63 | 135 | 0.87 | +http://yandex.com/bots |
| 11 | 234 | 0.35 | 104 | 0.67 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 204 | 0.31 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 13 | 190 | 0.29 | 68 | 0.44 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 82 | 0.12 | 3 | 0.02 | +http://fulltext.sblog.cz/ |
| 15 | 74 | 0.11 | 24 | 0.15 | Windows XP |
| 16 | 60 | 0.09 | 22 | 0.14 | Windows 95 |
| 17 | 48 | 0.07 | 40 | 0.26 | +http://www.uptime.com/uptimebot |
| 18 | 43 | 0.06 | 12 | 0.08 | Windows 98 |
| 19 | 39 | 0.06 | 37 | 0.24 | +http://www.xovibot.net/ |
| 20 | 36 | 0.05 | 12 | 0.08 | +http://www.exabot.com/go/robot |
| 21 | 23 | 0.03 | 1 | 0.01 | +http://www.linkpad.ru |
| 22 | 18 | 0.03 | 7 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 23 | 18 | 0.03 | 9 | 0.06 | +http://duckduckgo.com |
| 24 | 12 | 0.02 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 25 | 12 | 0.02 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 26 | 11 | 0.02 | 1 | 0.01 | crawler@mixrank.com |
| 27 | 10 | 0.02 | 3 | 0.02 | Windows CE |
| 28 | 10 | 0.02 | 2 | 0.01 | +http://www.privacyaware.org |
| 29 | 9 | 0.01 | 2 | 0.01 | Windows 2000 |
| 30 | 9 | 0.01 | 6 | 0.04 | ) - BrowseX (2.0.0 Windows |
| 31 | 8 | 0.01 | 4 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 32 | 7 | 0.01 | 3 | 0.02 | Auto; Windows |
| 33 | 5 | 0.01 | 5 | 0.03 | Windows ME |
| 34 | 4 | 0.01 | 3 | 0.02 | X11 |
| 35 | 3 | 0.00 | 1 | 0.01 | Windows 3.1 |
| 36 | 3 | 0.00 | 1 | 0.01 | +http://www.semrush.com/bot.html |
| 37 | 2 | 0.00 | 1 | 0.01 | +https://www.mojeek.com/bot.html |
| 38 | 2 | 0.00 | 0 | 0.00 | http://yooz.ir; info@yooz.ir |
| 39 | 2 | 0.00 | 2 | 0.01 | Linux i686 [unknown version] |
| 40 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 41 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 42 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 43 | 1 | 0.00 | 1 | 0.01 | Intel Mac OS X 10.6 |
| 44 | 1 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 45 | 1 | 0.00 | 0 | 0.00 | Android 2.3.5 |
