| Used Operating Systems |
| 1 | 6446 | 52.18 | 83 | 2.61 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2337 | 18.92 | 1991 | 62.59 | +http://www.baidu.com/search/spider.html |
| 3 | 1096 | 8.87 | 360 | 11.32 | Windows NT |
| 4 | 980 | 7.93 | 320 | 10.06 | +http://www.bing.com/bingbot.htm |
| 5 | 616 | 4.99 | 163 | 5.12 | +http://www.google.com/bot.html |
| 6 | 167 | 1.35 | 64 | 2.01 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 164 | 1.33 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 8 | 81 | 0.66 | 25 | 0.79 | +http://www.linkdex.com/bots/ |
| 9 | 81 | 0.66 | 25 | 0.79 | +http://yandex.com/bots |
| 10 | 56 | 0.45 | 17 | 0.53 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 46 | 0.37 | 16 | 0.50 | +http://www.semrush.com/bot.html |
| 12 | 41 | 0.33 | 12 | 0.38 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 33 | 0.27 | 3 | 0.09 | +http://webmeup-crawler.com/ |
| 14 | 27 | 0.22 | 3 | 0.09 | +http://OpenLinkProfiler.org/bot |
| 15 | 23 | 0.19 | 5 | 0.16 | Windows 98 |
| 16 | 22 | 0.18 | 19 | 0.60 | Windows 95 |
| 17 | 21 | 0.17 | 12 | 0.38 | +http://ahrefs.com/robot/ |
| 18 | 18 | 0.15 | 2 | 0.06 | +https://www.lipperhey.com/en/about/ |
| 19 | 12 | 0.10 | 7 | 0.22 | http://www.botje.com/plukkie.htm |
| 20 | 10 | 0.08 | 5 | 0.16 | +http://www.meanpath.com/meanpathbot.htm... |
| 21 | 10 | 0.08 | 5 | 0.16 | +http://www.exabot.com/go/robot |
| 22 | 8 | 0.06 | 6 | 0.19 | Windows CE |
| 23 | 8 | 0.06 | 1 | 0.03 | +http://megaindex.com/crawler |
| 24 | 8 | 0.06 | 7 | 0.22 | MSIE 5.5; Windows NT 4.0 |
| 25 | 7 | 0.06 | 7 | 0.22 | Windows 3.1 |
| 26 | 6 | 0.05 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 27 | 5 | 0.04 | 5 | 0.16 | MSIE 5.5; Windows NT 5.0 |
| 28 | 4 | 0.03 | 2 | 0.06 | +http://duckduckgo.com |
| 29 | 2 | 0.02 | 2 | 0.06 | Auto; Windows |
| 30 | 2 | 0.02 | 2 | 0.06 | Windows 2000 |
| 31 | 2 | 0.02 | 2 | 0.06 | http://nmap.org/book/nse.html |
| 32 | 2 | 0.02 | 0 | 0.00 | Windows XP |
| 33 | 2 | 0.02 | 2 | 0.06 | Windows ME |
| 34 | 2 | 0.02 | 1 | 0.03 | +info@netcraft.com |
| 35 | 2 | 0.02 | 1 | 0.03 | +http://www.findxbot.com |
| 36 | 2 | 0.02 | 2 | 0.06 | ) - BrowseX (2.0.0 Windows |
| 37 | 1 | 0.01 | 1 | 0.03 | +https://gimmeusa.com/crawler.html |
| 38 | 1 | 0.01 | 1 | 0.03 | +http://www.privacyaware.org |
| 39 | 1 | 0.01 | 1 | 0.03 | X11 |
| 40 | 1 | 0.01 | 1 | 0.03 | +http://www.grapeshot.co.uk/crawler.php |
| 41 | 1 | 0.01 | 0 | 0.00 | +http://www.xovibot.net/ |
