| Used Operating Systems |
| 1 | 3870 | 33.83 | 54 | 1.95 | +http://www.bing.com/bingbot.htm |
| 2 | 1994 | 17.43 | 1623 | 58.68 | +http://www.baidu.com/search/spider.html |
| 3 | 1698 | 14.84 | 507 | 18.33 | +http://www.google.com/bot.html |
| 4 | 1229 | 10.74 | 355 | 12.83 | Windows NT |
| 5 | 912 | 7.97 | 46 | 1.66 | http://mj12bot.com/ |
| 6 | 231 | 2.02 | 1 | 0.04 | +http://napoveda.seznam.cz/en/seznambot-... |
| 7 | 157 | 1.37 | 2 | 0.07 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 133 | 1.16 | 2 | 0.07 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 130 | 1.14 | 26 | 0.94 | +http://yandex.com/bots |
| 10 | 129 | 1.13 | 3 | 0.11 | +http://OpenLinkProfiler.org/bot |
| 11 | 112 | 0.98 | 10 | 0.36 | +http://ahrefs.com/robot/ |
| 12 | 109 | 0.95 | 2 | 0.07 | +spider@seoscanners.net |
| 13 | 106 | 0.93 | 2 | 0.07 | +https://www.aihitdata.com/about |
| 14 | 80 | 0.70 | 2 | 0.07 | +http://siteexplorer.info/Backlink-Check... |
| 15 | 74 | 0.65 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 16 | 65 | 0.57 | 2 | 0.07 | +https://deusu.de/robot.html |
| 17 | 52 | 0.45 | 4 | 0.14 | http://help.yahoo.com/help/us/ysearch/sl... |
| 18 | 52 | 0.45 | 29 | 1.05 | Windows 95 |
| 19 | 42 | 0.37 | 1 | 0.04 | +http://megaindex.com/crawler |
| 20 | 42 | 0.37 | 1 | 0.04 | Linux i586 [unknown version] |
| 21 | 33 | 0.29 | 9 | 0.33 | +http://www.exabot.com/go/robot |
| 22 | 28 | 0.24 | 4 | 0.14 | +http://www.profound.net/domainappender |
| 23 | 27 | 0.24 | 3 | 0.11 | +http://www.seokicks.de/robot.html |
| 24 | 25 | 0.22 | 15 | 0.54 | Windows 98 |
| 25 | 23 | 0.20 | 10 | 0.36 | Windows XP |
| 26 | 12 | 0.10 | 4 | 0.14 | +http://www.linkdex.com/bots/ |
| 27 | 11 | 0.10 | 9 | 0.33 | Windows ME |
| 28 | 10 | 0.09 | 8 | 0.29 | Windows 2000 |
| 29 | 9 | 0.08 | 3 | 0.11 | Windows CE |
| 30 | 7 | 0.06 | 5 | 0.18 | Auto; Windows |
| 31 | 7 | 0.06 | 2 | 0.07 | http://nmap.org/book/nse.html |
| 32 | 7 | 0.06 | 7 | 0.25 | MSIE 5.5; Windows NT 4.0 |
| 33 | 6 | 0.05 | 3 | 0.11 | +http://duckduckgo.com |
| 34 | 5 | 0.04 | 5 | 0.18 | Windows 3.1 |
| 35 | 4 | 0.03 | 2 | 0.07 | +info@netcraft.com |
| 36 | 3 | 0.03 | 3 | 0.11 | ) - BrowseX (2.0.0 Windows |
| 37 | 2 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 38 | 2 | 0.02 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 39 | 1 | 0.01 | 1 | 0.04 | Linux [unknown version] |
| 40 | 1 | 0.01 | 1 | 0.04 | +http://www.grapeshot.co.uk/crawler.php |
