| Used Operating Systems |
| 1 | 20552 | 82.06 | 198 | 9.40 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 1984 | 7.92 | 923 | 43.81 | Windows NT |
| 3 | 1234 | 4.93 | 293 | 13.91 | +http://www.google.com/bot.html |
| 4 | 377 | 1.51 | 237 | 11.25 | +http://www.bing.com/bingbot.htm |
| 5 | 281 | 1.12 | 202 | 9.59 | +http://www.baidu.com/search/spider.html |
| 6 | 88 | 0.35 | 34 | 1.61 | +http://yandex.com/bots |
| 7 | 66 | 0.26 | 3 | 0.14 | +https://www.aihitdata.com/about |
| 8 | 65 | 0.26 | 34 | 1.61 | +http://www.semrush.com/bot.html |
| 9 | 52 | 0.21 | 24 | 1.14 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 45 | 0.18 | 36 | 1.71 | Windows 95 |
| 11 | 43 | 0.17 | 21 | 1.00 | +http://www.exabot.com/go/robot |
| 12 | 38 | 0.15 | 2 | 0.09 | +http://OpenLinkProfiler.org/bot |
| 13 | 36 | 0.14 | 2 | 0.09 | Linux [unknown version] |
| 14 | 31 | 0.12 | 13 | 0.62 | Windows 98 |
| 15 | 22 | 0.09 | 4 | 0.19 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 18 | 0.07 | 1 | 0.05 | http://www.searchmetrics.com/en/searchme... |
| 17 | 12 | 0.05 | 8 | 0.38 | Windows ME |
| 18 | 12 | 0.05 | 6 | 0.28 | +http://www.meanpath.com/meanpathbot.htm... |
| 19 | 11 | 0.04 | 10 | 0.47 | +http://ahrefs.com/robot/ |
| 20 | 10 | 0.04 | 2 | 0.09 | http://filterdb.iss.net/crawler/ |
| 21 | 9 | 0.04 | 7 | 0.33 | Windows 3.1 |
| 22 | 8 | 0.03 | 2 | 0.09 | Windows XP |
| 23 | 7 | 0.03 | 7 | 0.33 | +http://domainsigma.com/robot |
| 24 | 6 | 0.02 | 6 | 0.28 | MSIE 5.5; Windows NT 4.0 |
| 25 | 5 | 0.02 | 5 | 0.24 | Windows CE |
| 26 | 5 | 0.02 | 5 | 0.24 | MSIE 5.5; Windows NT 5.0 |
| 27 | 5 | 0.02 | 5 | 0.24 | ) - BrowseX (2.0.0 Windows |
| 28 | 4 | 0.02 | 4 | 0.19 | Windows 2000 |
| 29 | 4 | 0.02 | 4 | 0.19 | Auto; Windows |
| 30 | 4 | 0.02 | 1 | 0.05 | +http://gimmeusa-update.com/crawler |
| 31 | 2 | 0.01 | 1 | 0.05 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 32 | 2 | 0.01 | 2 | 0.09 | +http://www.seograph.net/bot.html |
| 33 | 2 | 0.01 | 2 | 0.09 | http://nmap.org/book/nse.html |
| 34 | 2 | 0.01 | 1 | 0.05 | +info@netcraft.com |
| 35 | 1 | 0.00 | 1 | 0.05 | +http://www.grapeshot.co.uk/crawler.php |
| 36 | 1 | 0.00 | 1 | 0.05 | PPC Mac OS X Mach-O |
