| Used Operating Systems |
| 1 | 5404 | 40.44 | 67 | 1.36 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 3211 | 24.03 | 2087 | 42.21 | Windows NT |
| 3 | 1952 | 14.61 | 1755 | 35.50 | +http://www.baidu.com/search/spider.html |
| 4 | 1306 | 9.77 | 338 | 6.84 | +http://ahrefs.com/robot/ |
| 5 | 500 | 3.74 | 300 | 6.07 | +http://www.google.com/bot.html |
| 6 | 388 | 2.90 | 178 | 3.60 | +http://www.bing.com/bingbot.htm |
| 7 | 198 | 1.48 | 63 | 1.27 | +http://yandex.com/bots |
| 8 | 65 | 0.49 | 20 | 0.40 | +http://www.linkdex.com/bots/ |
| 9 | 56 | 0.42 | 5 | 0.10 | +http://fulltext.sblog.cz/ |
| 10 | 42 | 0.31 | 25 | 0.51 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 30 | 0.22 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 12 | 28 | 0.21 | 16 | 0.32 | Windows 95 |
| 13 | 28 | 0.21 | 1 | 0.02 | +http://megaindex.com/crawler |
| 14 | 27 | 0.20 | 14 | 0.28 | http://www.bing.com/bingbot.htm |
| 15 | 19 | 0.14 | 10 | 0.20 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 19 | 0.14 | 11 | 0.22 | Windows 98 |
| 17 | 17 | 0.13 | 6 | 0.12 | Windows XP |
| 18 | 9 | 0.07 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 19 | 7 | 0.05 | 7 | 0.14 | Windows 2000 |
| 20 | 6 | 0.04 | 5 | 0.10 | Windows ME |
| 21 | 6 | 0.04 | 4 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 22 | 5 | 0.04 | 4 | 0.08 | Windows CE |
| 23 | 5 | 0.04 | 5 | 0.10 | ) - BrowseX (2.0.0 Windows |
| 24 | 4 | 0.03 | 2 | 0.04 | +http://help.coccoc.com/ |
| 25 | 4 | 0.03 | 3 | 0.06 | Windows 3.1 |
| 26 | 4 | 0.03 | 4 | 0.08 | MSIE 5.5; Windows NT 4.0 |
| 27 | 3 | 0.02 | 1 | 0.02 | Auto; Windows |
| 28 | 3 | 0.02 | 2 | 0.04 | http://nmap.org/book/nse.html |
| 29 | 2 | 0.01 | 1 | 0.02 | +http://crawler.seolytics.net/ |
| 30 | 2 | 0.01 | 1 | 0.02 | +https://www.mojeek.com/bot.html |
| 31 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 32 | 2 | 0.01 | 2 | 0.04 | Linux i686 [unknown version] |
| 33 | 2 | 0.01 | 1 | 0.02 | Macintosh |
| 34 | 2 | 0.01 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 35 | 2 | 0.01 | 1 | 0.02 | +http://duckduckgo.com |
| 36 | 1 | 0.01 | 1 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 37 | 1 | 0.01 | 1 | 0.02 | X11 |
