| Used Operating Systems |
| 1 | 27595 | 29.17 | 297 | 1.23 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 20811 | 22.00 | 12107 | 50.21 | +http://www.baidu.com/search/spider.html |
| 3 | 19024 | 20.11 | 1097 | 4.55 | Windows NT |
| 4 | 12763 | 13.49 | 8445 | 35.02 | +http://ahrefs.com/robot/ |
| 5 | 3993 | 4.22 | 396 | 1.64 | +http://yandex.com/bots |
| 6 | 2871 | 3.04 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 7 | 2555 | 2.70 | 1029 | 4.27 | +http://www.google.com/bot.html |
| 8 | 1433 | 1.52 | 2 | 0.01 | +http://megaindex.com/crawler |
| 9 | 1038 | 1.10 | 3 | 0.01 | +http://www.warebay.com/bot.html |
| 10 | 864 | 0.91 | 326 | 1.35 | +http://www.bing.com/bingbot.htm |
| 11 | 395 | 0.42 | 57 | 0.24 | +http://www.semrush.com/bot.html |
| 12 | 268 | 0.28 | 163 | 0.68 | +http://www.linkdex.com/bots/ |
| 13 | 192 | 0.20 | 2 | 0.01 | Linux [unknown version] |
| 14 | 144 | 0.15 | 2 | 0.01 | +http://napoveda.seznam.cz/en/seznambot-... |
| 15 | 96 | 0.10 | 1 | 0.00 | Linux i586 [unknown version] |
| 16 | 81 | 0.09 | 31 | 0.13 | Windows 95 |
| 17 | 59 | 0.06 | 10 | 0.04 | Windows 98 |
| 18 | 49 | 0.05 | 16 | 0.07 | +http://www.exabot.com/go/robot |
| 19 | 42 | 0.04 | 14 | 0.06 | http://help.yahoo.com/help/us/ysearch/sl... |
| 20 | 32 | 0.03 | 4 | 0.02 | +http://www.seokicks.de/robot.html |
| 21 | 30 | 0.03 | 3 | 0.01 | http://filterdb.iss.net/crawler/ |
| 22 | 26 | 0.03 | 4 | 0.02 | Windows CE |
| 23 | 25 | 0.03 | 6 | 0.02 | Windows 2000 |
| 24 | 24 | 0.03 | 12 | 0.05 | http://www.opensiteexplorer.org/dotbot, ... |
| 25 | 24 | 0.03 | 8 | 0.03 | +spider@seoscanners.net |
| 26 | 20 | 0.02 | 4 | 0.02 | +http://www.profound.net/domainappender |
| 27 | 18 | 0.02 | 4 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 28 | 18 | 0.02 | 1 | 0.00 | +http://webmeup-crawler.com/ |
| 29 | 17 | 0.02 | 7 | 0.03 | Windows XP |
| 30 | 14 | 0.01 | 14 | 0.06 | +http://www.xovibot.net/ |
| 31 | 12 | 0.01 | 1 | 0.00 | +https://www.dataprovider.com/ |
| 32 | 8 | 0.01 | 8 | 0.03 | Windows 3.1 |
| 33 | 7 | 0.01 | 7 | 0.03 | Auto; Windows |
| 34 | 6 | 0.01 | 4 | 0.02 | +info@netcraft.com |
| 35 | 6 | 0.01 | 6 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 36 | 5 | 0.01 | 4 | 0.02 | Windows ME |
| 37 | 5 | 0.01 | 2 | 0.01 | +http://siteexplorer.info/ |
| 38 | 4 | 0.00 | 2 | 0.01 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 39 | 4 | 0.00 | 2 | 0.01 | Intel Mac OS X 10.6 |
| 40 | 3 | 0.00 | 3 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 41 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 42 | 1 | 0.00 | 1 | 0.00 | +https://rankval.com |
| 43 | 1 | 0.00 | 1 | 0.00 | Macintosh |
