| Used Operating Systems |
| 1 | 18263 | 63.43 | 134 | 2.75 | http://mj12bot.com/ |
| 2 | 2270 | 7.88 | 2008 | 41.28 | +http://www.baidu.com/search/spider.html |
| 3 | 1988 | 6.90 | 308 | 6.33 | http://www.opensiteexplorer.org/dotbot, ... |
| 4 | 1950 | 6.77 | 941 | 19.35 | Windows NT |
| 5 | 1010 | 3.51 | 217 | 4.46 | +http://ahrefs.com/robot/ |
| 6 | 779 | 2.71 | 160 | 3.29 | +http://napoveda.seznam.cz/en/seznambot-... |
| 7 | 507 | 1.76 | 313 | 6.44 | Linux i686 [unknown version] |
| 8 | 490 | 1.70 | 146 | 3.00 | +http://yandex.com/bots |
| 9 | 376 | 1.31 | 169 | 3.47 | +http://www.google.com/bot.html |
| 10 | 270 | 0.94 | 49 | 1.01 | +http://www.linkdex.com/bots/ |
| 11 | 201 | 0.70 | 96 | 1.97 | +http://www.bing.com/bingbot.htm |
| 12 | 100 | 0.35 | 81 | 1.67 | Windows 95 |
| 13 | 86 | 0.30 | 38 | 0.78 | Windows 98 |
| 14 | 63 | 0.22 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 15 | 63 | 0.22 | 22 | 0.45 | Windows XP |
| 16 | 49 | 0.17 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 17 | 48 | 0.17 | 39 | 0.80 | +http://www.uptime.com/uptimebot |
| 18 | 32 | 0.11 | 8 | 0.16 | +http://www.exabot.com/go/robot |
| 19 | 26 | 0.09 | 3 | 0.06 | +http://cliqz.com/company/cliqzbot |
| 20 | 24 | 0.08 | 18 | 0.37 | MSIE 5.5; Windows NT 5.0 |
| 21 | 22 | 0.08 | 11 | 0.23 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 22 | 21 | 0.07 | 18 | 0.37 | MSIE 5.5; Windows NT 4.0 |
| 23 | 20 | 0.07 | 15 | 0.31 | Windows 2000 |
| 24 | 17 | 0.06 | 12 | 0.25 | Auto; Windows |
| 25 | 15 | 0.05 | 14 | 0.29 | ) - BrowseX (2.0.0 Windows |
| 26 | 14 | 0.05 | 12 | 0.25 | Windows ME |
| 27 | 11 | 0.04 | 9 | 0.19 | Windows 3.1 |
| 28 | 10 | 0.03 | 0 | 0.00 | +http://www.xovibot.net/ |
| 29 | 9 | 0.03 | 1 | 0.02 | +http://www.seokicks.de/robot.html |
| 30 | 9 | 0.03 | 3 | 0.06 | +http://www.profound.net/domainappender |
| 31 | 8 | 0.03 | 8 | 0.16 | Windows CE |
| 32 | 8 | 0.03 | 2 | 0.04 | http://help.yahoo.com/help/us/ysearch/sl... |
| 33 | 8 | 0.03 | 3 | 0.06 | +http://www.findxbot.com |
| 34 | 7 | 0.02 | 1 | 0.02 | crawler@mixrank.com |
| 35 | 7 | 0.02 | 0 | 0.00 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 36 | 7 | 0.02 | 0 | 0.00 | +http://siteexplorer.info/Backlink-Check... |
| 37 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 38 | 2 | 0.01 | 0 | 0.00 | +; |
| 39 | 1 | 0.00 | 1 | 0.02 | http://misc.yahoo.com.cn/help.html |
| 40 | 1 | 0.00 | 1 | 0.02 | Windows Phone OS 7.5 |
