| Used Operating Systems |
| 1 | 12562 | 61.38 | 314 | 6.71 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4130 | 20.18 | 3066 | 65.53 | +http://www.baidu.com/search/spider.html |
| 3 | 941 | 4.60 | 338 | 7.22 | +http://www.bing.com/bingbot.htm |
| 4 | 844 | 4.12 | 242 | 5.17 | Windows NT |
| 5 | 600 | 2.93 | 253 | 5.41 | +http://www.google.com/bot.html |
| 6 | 417 | 2.04 | 97 | 2.07 | +http://www.linkdex.com/bots/ |
| 7 | 249 | 1.22 | 106 | 2.27 | +http://yandex.com/bots |
| 8 | 122 | 0.60 | 44 | 0.94 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 79 | 0.39 | 24 | 0.51 | Windows XP |
| 10 | 78 | 0.38 | 61 | 1.30 | +http://www.uptime.com/uptimebot |
| 11 | 42 | 0.21 | 2 | 0.04 | +http://www.privacyaware.org |
| 12 | 41 | 0.20 | 22 | 0.47 | +http://www.exabot.com/go/robot |
| 13 | 40 | 0.20 | 4 | 0.09 | +http://OpenLinkProfiler.org/bot |
| 14 | 31 | 0.15 | 14 | 0.30 | +http://help.coccoc.com/ |
| 15 | 30 | 0.15 | 6 | 0.13 | +http://fulltext.sblog.cz/ |
| 16 | 26 | 0.13 | 12 | 0.26 | +http://ahrefs.com/robot/ |
| 17 | 21 | 0.10 | 7 | 0.15 | Windows 95 |
| 18 | 20 | 0.10 | 2 | 0.04 | +https://www.lipperhey.com/en/about/ |
| 19 | 20 | 0.10 | 2 | 0.04 | +http://megaindex.com/crawler |
| 20 | 19 | 0.09 | 7 | 0.15 | Windows 3.1 |
| 21 | 15 | 0.07 | 12 | 0.26 | +http://glutenfreepleasure.com/ |
| 22 | 14 | 0.07 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 23 | 12 | 0.06 | 4 | 0.09 | Auto; Windows |
| 24 | 12 | 0.06 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 25 | 12 | 0.06 | 5 | 0.11 | +http://duckduckgo.com |
| 26 | 10 | 0.05 | 1 | 0.02 | +http://www.linkpad.ru |
| 27 | 10 | 0.05 | 1 | 0.02 | http://crawler.007ac9.net/ |
| 28 | 8 | 0.04 | 3 | 0.06 | Windows 2000 |
| 29 | 8 | 0.04 | 4 | 0.09 | +https://deusu.de/robot.html |
| 30 | 6 | 0.03 | 2 | 0.04 | +http://www.semrush.com/bot.html |
| 31 | 6 | 0.03 | 2 | 0.04 | +http://prlog.ru/ |
| 32 | 6 | 0.03 | 2 | 0.04 | ) - BrowseX (2.0.0 Windows |
| 33 | 6 | 0.03 | 2 | 0.04 | Windows 98 |
| 34 | 6 | 0.03 | 2 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 35 | 5 | 0.02 | 4 | 0.09 | +info@netcraft.com |
| 36 | 4 | 0.02 | 4 | 0.09 | +http://pmoz.info/doc/botinfo.htm |
| 37 | 4 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 38 | 2 | 0.01 | 2 | 0.04 | +https://gimmeusa.com/crawler.html |
| 39 | 2 | 0.01 | 1 | 0.02 | +http://www.netseer.com/crawler.html; cr... |
| 40 | 2 | 0.01 | 2 | 0.04 | +http://www.grapeshot.co.uk/crawler.php |
| 41 | 2 | 0.01 | 0 | 0.00 | +http://siteexplorer.info/ |
| 42 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 43 | 1 | 0.00 | 1 | 0.02 | Linux i686 [unknown version] |
