| Used Operating Systems |
| 1 | 23099 | 39.91 | 164 | 1.32 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 11046 | 19.09 | 7600 | 61.23 | +http://ahrefs.com/robot/ |
| 3 | 4689 | 8.10 | 19 | 0.15 | +http://www.warebay.com/bot.html |
| 4 | 3448 | 5.96 | 1 | 0.01 | +http://megaindex.com/crawler |
| 5 | 3032 | 5.24 | 682 | 5.49 | Windows NT |
| 6 | 3004 | 5.19 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 7 | 2721 | 4.70 | 2309 | 18.60 | +http://www.baidu.com/search/spider.html |
| 8 | 2054 | 3.55 | 393 | 3.17 | +http://yandex.com/bots |
| 9 | 2006 | 3.47 | 2 | 0.02 | http://crawler.007ac9.net/ |
| 10 | 1458 | 2.52 | 668 | 5.38 | +http://www.google.com/bot.html |
| 11 | 403 | 0.70 | 237 | 1.91 | +http://www.bing.com/bingbot.htm |
| 12 | 319 | 0.55 | 104 | 0.84 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 252 | 0.44 | 66 | 0.53 | +http://www.linkdex.com/bots/ |
| 14 | 48 | 0.08 | 41 | 0.33 | +http://www.uptime.com/uptimebot |
| 15 | 43 | 0.07 | 15 | 0.12 | Windows XP |
| 16 | 39 | 0.07 | 22 | 0.18 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 29 | 0.05 | 10 | 0.08 | Windows 98 |
| 18 | 27 | 0.05 | 15 | 0.12 | Windows 95 |
| 19 | 26 | 0.04 | 2 | 0.02 | +http://www.privacyaware.org |
| 20 | 24 | 0.04 | 12 | 0.10 | +http://duckduckgo.com |
| 21 | 14 | 0.02 | 1 | 0.01 | +http://www.linkpad.ru |
| 22 | 12 | 0.02 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 23 | 11 | 0.02 | 11 | 0.09 | apps-spreadsheets; +http://docs.google.c... |
| 24 | 11 | 0.02 | 4 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 25 | 9 | 0.02 | 3 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 26 | 8 | 0.01 | 4 | 0.03 | +http://www.exabot.com/go/robot |
| 27 | 7 | 0.01 | 3 | 0.02 | Windows CE |
| 28 | 7 | 0.01 | 4 | 0.03 | Windows 2000 |
| 29 | 4 | 0.01 | 2 | 0.02 | Windows ME |
| 30 | 4 | 0.01 | 4 | 0.03 | +http://www.xovibot.net/ |
| 31 | 3 | 0.01 | 1 | 0.01 | Windows 3.1 |
| 32 | 3 | 0.01 | 3 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 33 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 34 | 2 | 0.00 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 35 | 2 | 0.00 | 2 | 0.02 | Auto; Windows |
| 36 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 37 | 1 | 0.00 | 0 | 0.00 | X11 |
| 38 | 1 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 39 | 1 | 0.00 | 1 | 0.01 | Android 2.3.5 |
