| Used Operating Systems |
| 1 | 14110 | 58.02 | 189 | 4.13 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 3360 | 13.82 | 149 | 3.26 | +http://yandex.com/bots |
| 3 | 2460 | 10.11 | 1165 | 25.48 | Windows NT |
| 4 | 2040 | 8.39 | 1859 | 40.65 | +http://www.baidu.com/search/spider.html |
| 5 | 903 | 3.71 | 569 | 12.44 | +http://www.google.com/bot.html |
| 6 | 549 | 2.26 | 162 | 3.54 | +http://www.bing.com/bingbot.htm |
| 7 | 189 | 0.78 | 123 | 2.69 | +http://www.linkdex.com/bots/ |
| 8 | 83 | 0.34 | 65 | 1.42 | Windows 95 |
| 9 | 75 | 0.31 | 36 | 0.79 | Windows 98 |
| 10 | 59 | 0.24 | 34 | 0.74 | +http://www.xovibot.net/ |
| 11 | 54 | 0.22 | 6 | 0.13 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 46 | 0.19 | 22 | 0.48 | +http://www.proximic.com/info/spider.php |
| 13 | 35 | 0.14 | 14 | 0.31 | Windows XP |
| 14 | 32 | 0.13 | 21 | 0.46 | MSIE 5.5; Windows NT 4.0 |
| 15 | 30 | 0.12 | 2 | 0.04 | +http://napoveda.seznam.cz/en/seznambot-... |
| 16 | 28 | 0.12 | 3 | 0.07 | +http://www.semrush.com/bot.html |
| 17 | 26 | 0.11 | 5 | 0.11 | +http://ahrefs.com/robot/ |
| 18 | 22 | 0.09 | 12 | 0.26 | Windows ME |
| 19 | 19 | 0.08 | 15 | 0.33 | Windows 2000 |
| 20 | 19 | 0.08 | 18 | 0.39 | Auto; Windows |
| 21 | 17 | 0.07 | 14 | 0.31 | ) - BrowseX (2.0.0 Windows |
| 22 | 16 | 0.07 | 3 | 0.07 | +spider@seoscanners.net |
| 23 | 15 | 0.06 | 13 | 0.28 | Windows 3.1 |
| 24 | 14 | 0.06 | 14 | 0.31 | Windows CE |
| 25 | 10 | 0.04 | 5 | 0.11 | http://help.yahoo.com/help/us/ysearch/sl... |
| 26 | 10 | 0.04 | 5 | 0.11 | +http://www.exabot.com/go/robot |
| 27 | 9 | 0.04 | 9 | 0.20 | MSIE 5.5; Windows NT 5.0 |
| 28 | 8 | 0.03 | 2 | 0.04 | http://www.opensiteexplorer.org/dotbot, ... |
| 29 | 8 | 0.03 | 4 | 0.09 | +http://OpenLinkProfiler.org/bot |
| 30 | 8 | 0.03 | 4 | 0.09 | +http://duckduckgo.com |
| 31 | 8 | 0.03 | 3 | 0.07 | +http://siteexplorer.info/ |
| 32 | 6 | 0.02 | 6 | 0.13 | info@muso.com; +http://www.muso.com |
| 33 | 6 | 0.02 | 5 | 0.11 | +http://www.uptime.com/uptimebot |
| 34 | 6 | 0.02 | 3 | 0.07 | +http://www.seokicks.de/robot.html |
| 35 | 6 | 0.02 | 2 | 0.04 | +http://webmeup-crawler.com/ |
| 36 | 6 | 0.02 | 2 | 0.04 | +https://www.dataprovider.com/ |
| 37 | 5 | 0.02 | 0 | 0.00 | Linux [unknown version] |
| 38 | 4 | 0.02 | 4 | 0.09 | Linux i686 [unknown version] |
| 39 | 4 | 0.02 | 0 | 0.00 | Windows 76 |
| 40 | 3 | 0.01 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 41 | 3 | 0.01 | 0 | 0.00 | Windows 92 |
| 42 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 43 | 2 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 44 | 1 | 0.00 | 1 | 0.02 | Windows 763 |
| 45 | 1 | 0.00 | 0 | 0.00 | Windows A5 |
| 46 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 47 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 48 | 1 | 0.00 | 1 | 0.02 | Linux i586 [unknown version] |
| 49 | 1 | 0.00 | 1 | 0.02 | +http://megaindex.com/crawler |
