| Used Operating Systems |
| 1 | 3409 | 34.17 | 1110 | 25.44 | Windows NT |
| 2 | 2455 | 24.61 | 2207 | 50.57 | +http://www.baidu.com/search/spider.html |
| 3 | 1688 | 16.92 | 383 | 8.78 | +http://www.bing.com/bingbot.htm |
| 4 | 621 | 6.22 | 84 | 1.92 | +http://yandex.com/bots |
| 5 | 453 | 4.54 | 239 | 5.48 | +http://www.google.com/bot.html |
| 6 | 312 | 3.13 | 106 | 2.43 | +http://ahrefs.com/robot/ |
| 7 | 216 | 2.17 | 31 | 0.71 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 130 | 1.30 | 27 | 0.62 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 128 | 1.28 | 2 | 0.05 | +http://webmeup-crawler.com/ |
| 10 | 72 | 0.72 | 9 | 0.21 | +http://gimme60.com |
| 11 | 70 | 0.70 | 34 | 0.78 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 63 | 0.63 | 19 | 0.44 | Windows 95 |
| 13 | 56 | 0.56 | 12 | 0.27 | Windows 98 |
| 14 | 51 | 0.51 | 9 | 0.21 | Windows CE |
| 15 | 36 | 0.36 | 12 | 0.27 | +http://www.exabot.com/go/robot |
| 16 | 24 | 0.24 | 8 | 0.18 | ) - BrowseX (2.0.0 Windows |
| 17 | 24 | 0.24 | 6 | 0.14 | http://filterdb.iss.net/crawler/ |
| 18 | 18 | 0.18 | 6 | 0.14 | Windows 2000 |
| 19 | 15 | 0.15 | 3 | 0.07 | Auto; Windows |
| 20 | 15 | 0.15 | 5 | 0.11 | +http://www.meanpath.com/meanpathbot.htm... |
| 21 | 9 | 0.09 | 9 | 0.21 | +http://www.domaintuno.com/robot |
| 22 | 8 | 0.08 | 2 | 0.05 | +http://getdownload.ws |
| 23 | 8 | 0.08 | 4 | 0.09 | http://crawler.sistrix.net/ |
| 24 | 8 | 0.08 | 4 | 0.09 | Wayback Machine Live Record; +http://arc... |
| 25 | 8 | 0.08 | 2 | 0.05 | +http://mercedes-w123.net |
| 26 | 8 | 0.08 | 2 | 0.05 | +http://medialine-it.com |
| 27 | 8 | 0.08 | 3 | 0.07 | Windows ME |
| 28 | 8 | 0.08 | 2 | 0.05 | +http://t2downloads.xyz |
| 29 | 6 | 0.06 | 2 | 0.05 | +http://trumpetsheetmusic.org |
| 30 | 6 | 0.06 | 2 | 0.05 | +http://isdownload.biz |
| 31 | 6 | 0.06 | 2 | 0.05 | Windows 3.1 |
| 32 | 6 | 0.06 | 2 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 33 | 6 | 0.06 | 2 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 34 | 6 | 0.06 | 2 | 0.05 | +http://duckduckgo.com |
| 35 | 3 | 0.03 | 0 | 0.00 | +http://www.easou.com/search/spider.html |
| 36 | 3 | 0.03 | 1 | 0.02 | Windows XP |
| 37 | 3 | 0.03 | 2 | 0.05 | +info@netcraft.com |
| 38 | 2 | 0.02 | 2 | 0.05 | +http://fb02itsscan.fh-muenster.de |
| 39 | 2 | 0.02 | 2 | 0.05 | X11 |
| 40 | 2 | 0.02 | 1 | 0.02 | WinHttp.WinHttpRequest.5 |
| 41 | 2 | 0.02 | 2 | 0.05 | +http://www.grapeshot.co.uk/crawler.php |
| 42 | 2 | 0.02 | 2 | 0.05 | Linux i686 [unknown version] |
