| Used Operating Systems |
| 1 | 29604 | 46.33 | 506 | 5.18 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 10856 | 16.99 | 946 | 9.68 | Windows NT |
| 3 | 7905 | 12.37 | 5047 | 51.63 | +http://ahrefs.com/robot/ |
| 4 | 4951 | 7.75 | 1 | 0.01 | +http://megaindex.com/crawler |
| 5 | 3419 | 5.35 | 1876 | 19.19 | +http://www.baidu.com/search/spider.html |
| 6 | 2006 | 3.14 | 2 | 0.02 | http://crawler.007ac9.net/ |
| 7 | 1336 | 2.09 | 7 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 8 | 1087 | 1.70 | 330 | 3.38 | +http://www.linkdex.com/bots/ |
| 9 | 965 | 1.51 | 466 | 4.77 | +http://www.google.com/bot.html |
| 10 | 306 | 0.48 | 78 | 0.80 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 195 | 0.31 | 66 | 0.68 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 184 | 0.29 | 8 | 0.08 | +http://siteexplorer.info/ |
| 13 | 181 | 0.28 | 66 | 0.68 | +http://yandex.com/bots |
| 14 | 158 | 0.25 | 90 | 0.92 | Windows 95 |
| 15 | 121 | 0.19 | 26 | 0.27 | +http://www.bing.com/bingbot.htm |
| 16 | 74 | 0.12 | 14 | 0.14 | Windows 98 |
| 17 | 64 | 0.10 | 58 | 0.59 | +http://www.uptime.com/uptimebot |
| 18 | 60 | 0.09 | 25 | 0.26 | Windows CE |
| 19 | 57 | 0.09 | 20 | 0.20 | Windows 2000 |
| 20 | 57 | 0.09 | 25 | 0.26 | +http://www.exabot.com/go/robot |
| 21 | 56 | 0.09 | 18 | 0.18 | Windows 3.1 |
| 22 | 50 | 0.08 | 14 | 0.14 | MSIE 5.5; Windows NT 5.0 |
| 23 | 27 | 0.04 | 19 | 0.19 | Windows ME |
| 24 | 25 | 0.04 | 4 | 0.04 | http://www.opensiteexplorer.org/dotbot, ... |
| 25 | 18 | 0.03 | 2 | 0.02 | +http://www.seokicks.de/robot.html |
| 26 | 18 | 0.03 | 6 | 0.06 | +http://www.semrush.com/bot.html |
| 27 | 15 | 0.02 | 13 | 0.13 | Auto; Windows |
| 28 | 15 | 0.02 | 14 | 0.14 | MSIE 5.5; Windows NT 4.0 |
| 29 | 14 | 0.02 | 2 | 0.02 | crawler@mixrank.com |
| 30 | 13 | 0.02 | 3 | 0.03 | Windows XP |
| 31 | 13 | 0.02 | 10 | 0.10 | ) - BrowseX (2.0.0 Windows |
| 32 | 12 | 0.02 | 4 | 0.04 | +http://webmeup-crawler.com/ |
| 33 | 8 | 0.01 | 0 | 0.00 | J2ME/MIDP |
| 34 | 7 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 35 | 6 | 0.01 | 2 | 0.02 | +http://filterdb.iss.net/crawler/ |
| 36 | 4 | 0.01 | 2 | 0.02 | http://www.botje.com/plukkie.htm |
| 37 | 4 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 38 | 4 | 0.01 | 4 | 0.04 | +http://www.xovibot.net/ |
| 39 | 4 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 40 | 2 | 0.00 | 0 | 0.00 | Android 2.3.3 |
| 41 | 2 | 0.00 | 0 | 0.00 | Windows 9x |
| 42 | 2 | 0.00 | 2 | 0.02 | +info@netcraft.com |
