| Used Operating Systems |
| 1 | 2328 | 45.88 | 1999 | 69.70 | +http://www.baidu.com/search/spider.html |
| 2 | 831 | 16.38 | 64 | 2.23 | +http://yandex.com/bots |
| 3 | 728 | 14.35 | 321 | 11.19 | Windows NT |
| 4 | 298 | 5.87 | 165 | 5.75 | +http://www.bing.com/bingbot.htm |
| 5 | 293 | 5.77 | 92 | 3.21 | +http://www.google.com/bot.html |
| 6 | 218 | 4.30 | 82 | 2.86 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 101 | 1.99 | 21 | 0.73 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 71 | 1.40 | 29 | 1.01 | Windows 95 |
| 9 | 57 | 1.12 | 20 | 0.70 | Windows XP |
| 10 | 26 | 0.51 | 2 | 0.07 | +https://www.lipperhey.com/en/about/ |
| 11 | 22 | 0.43 | 12 | 0.42 | +http://ahrefs.com/robot/ |
| 12 | 22 | 0.43 | 11 | 0.38 | Windows 98 |
| 13 | 8 | 0.16 | 4 | 0.14 | Windows 2000 |
| 14 | 8 | 0.16 | 4 | 0.14 | Windows 3.1 |
| 15 | 8 | 0.16 | 4 | 0.14 | MSIE 5.5; Windows NT 5.0 |
| 16 | 8 | 0.16 | 6 | 0.21 | +info@netcraft.com |
| 17 | 8 | 0.16 | 4 | 0.14 | MSIE 5.5; Windows NT 4.0 |
| 18 | 8 | 0.16 | 4 | 0.14 | +http://duckduckgo.com |
| 19 | 6 | 0.12 | 3 | 0.10 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 20 | 6 | 0.12 | 6 | 0.21 | http://nmap.org/book/nse.html |
| 21 | 4 | 0.08 | 4 | 0.14 | Linux [unknown version] |
| 22 | 4 | 0.08 | 2 | 0.07 | http://www.botje.com/plukkie.htm |
| 23 | 4 | 0.08 | 2 | 0.07 | +http://www.meanpath.com/meanpathbot.htm... |
| 24 | 2 | 0.04 | 2 | 0.07 | Auto; Windows |
| 25 | 2 | 0.04 | 2 | 0.07 | Linux i686 [unknown version] |
| 26 | 2 | 0.04 | 2 | 0.07 | +http://www.grapeshot.co.uk/crawler.php |
| 27 | 1 | 0.02 | 1 | 0.03 | +http://www.privacyaware.org |
