| Used Operating Systems |
| 1 | 18648 | 26.84 | 371 | 4.24 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 11959 | 17.21 | 76 | 0.87 | +http://www.semrush.com/bot.html |
| 3 | 11411 | 16.42 | 807 | 9.22 | Windows NT |
| 4 | 11197 | 16.11 | 4234 | 48.38 | +http://ahrefs.com/robot/ |
| 5 | 6472 | 9.31 | 2 | 0.02 | +http://megaindex.com/crawler |
| 6 | 4760 | 6.85 | 1963 | 22.43 | +http://www.baidu.com/search/spider.html |
| 7 | 897 | 1.29 | 5 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 8 | 695 | 1.00 | 131 | 1.50 | +http://napoveda.seznam.cz/en/seznambot-... |
| 9 | 564 | 0.81 | 122 | 1.39 | +http://www.linkdex.com/bots/ |
| 10 | 490 | 0.71 | 2 | 0.02 | Linux [unknown version] |
| 11 | 462 | 0.66 | 147 | 1.68 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 310 | 0.45 | 145 | 1.66 | +http://www.bing.com/bingbot.htm |
| 13 | 283 | 0.41 | 93 | 1.06 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 277 | 0.40 | 90 | 1.03 | +http://yandex.com/bots |
| 15 | 217 | 0.31 | 96 | 1.10 | +http://www.google.com/bot.html |
| 16 | 186 | 0.27 | 152 | 1.74 | +http://www.xovibot.net/ |
| 17 | 126 | 0.18 | 6 | 0.07 | +http://www.seokicks.de/robot.html |
| 18 | 118 | 0.17 | 88 | 1.01 | Windows 95 |
| 19 | 66 | 0.09 | 25 | 0.29 | +http://www.exabot.com/go/robot |
| 20 | 58 | 0.08 | 56 | 0.64 | +http://www.uptime.com/uptimebot |
| 21 | 46 | 0.07 | 12 | 0.14 | Windows 98 |
| 22 | 32 | 0.05 | 6 | 0.07 | +http://siteexplorer.info/ |
| 23 | 29 | 0.04 | 5 | 0.06 | Windows XP |
| 24 | 20 | 0.03 | 18 | 0.21 | MSIE 5.5; Windows NT 5.0 |
| 25 | 18 | 0.03 | 15 | 0.17 | Windows CE |
| 26 | 17 | 0.02 | 15 | 0.17 | Windows 2000 |
| 27 | 17 | 0.02 | 13 | 0.15 | MSIE 5.5; Windows NT 4.0 |
| 28 | 16 | 0.02 | 15 | 0.17 | Auto; Windows |
| 29 | 16 | 0.02 | 4 | 0.05 | +http://webmeup-crawler.com/ |
| 30 | 16 | 0.02 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 31 | 14 | 0.02 | 11 | 0.13 | Windows ME |
| 32 | 12 | 0.02 | 9 | 0.10 | Windows 3.1 |
| 33 | 12 | 0.02 | 10 | 0.11 | ) - BrowseX (2.0.0 Windows |
| 34 | 8 | 0.01 | 2 | 0.02 | http://filterdb.iss.net/crawler/ |
| 35 | 4 | 0.01 | 2 | 0.02 | http://www.botje.com/plukkie.htm |
| 36 | 3 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 37 | 2 | 0.00 | 0 | 0.00 | https://nmap.org/book/nse.html |
| 38 | 2 | 0.00 | 2 | 0.02 | +http://glutenfreepleasure.com/ |
| 39 | 2 | 0.00 | 0 | 0.00 | Android 2.3.5 |
| 40 | 2 | 0.00 | 1 | 0.01 | X11 |
| 41 | 1 | 0.00 | 1 | 0.01 | Windows Phone OS 7.5 |
