| Used Operating Systems |
| 1 | 21042 | 60.52 | 273 | 7.57 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5656 | 16.27 | 218 | 6.04 | +http://ahrefs.com/robot/ |
| 3 | 2500 | 7.19 | 2021 | 56.03 | +http://www.baidu.com/search/spider.html |
| 4 | 1630 | 4.69 | 45 | 1.25 | Windows XP |
| 5 | 1239 | 3.56 | 451 | 12.50 | Windows NT |
| 6 | 1124 | 3.23 | 49 | 1.36 | +http://www.semrush.com/bot.html |
| 7 | 443 | 1.27 | 243 | 6.74 | +http://www.bing.com/bingbot.htm |
| 8 | 430 | 1.24 | 122 | 3.38 | +http://www.google.com/bot.html |
| 9 | 212 | 0.61 | 67 | 1.86 | +http://yandex.com/bots |
| 10 | 147 | 0.42 | 2 | 0.06 | +http://www.findxbot.com |
| 11 | 110 | 0.32 | 30 | 0.83 | +http://www.linkdex.com/bots/ |
| 12 | 96 | 0.28 | 35 | 0.97 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 36 | 0.10 | 10 | 0.28 | Windows 95 |
| 14 | 21 | 0.06 | 6 | 0.17 | Windows 98 |
| 15 | 14 | 0.04 | 6 | 0.17 | Windows CE |
| 16 | 12 | 0.03 | 4 | 0.11 | MSIE 5.5; Windows NT 4.0 |
| 17 | 10 | 0.03 | 5 | 0.14 | +http://www.exabot.com/go/robot |
| 18 | 9 | 0.03 | 3 | 0.08 | Auto; Windows |
| 19 | 6 | 0.02 | 2 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 20 | 6 | 0.02 | 0 | 0.00 | Windows ME |
| 21 | 5 | 0.01 | 3 | 0.08 | +info@netcraft.com |
| 22 | 4 | 0.01 | 2 | 0.06 | http://www.botje.com/plukkie.htm |
| 23 | 4 | 0.01 | 2 | 0.06 | ; Trident/4.0; .NET CLR 1.1.4322; .NET C... |
| 24 | 3 | 0.01 | 1 | 0.03 | Windows 2000 |
| 25 | 2 | 0.01 | 2 | 0.06 | http://nmap.org/book/nse.html |
| 26 | 2 | 0.01 | 2 | 0.06 | +http://megaindex.com/crawler |
| 27 | 2 | 0.01 | 1 | 0.03 | +http://www.seokicks.de/robot.html |
| 28 | 2 | 0.01 | 1 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 29 | 1 | 0.00 | 1 | 0.03 | Linux [unknown version] |
