| Used Operating Systems |
| 1 | 4489 | 35.60 | 1686 | 36.87 | Windows NT |
| 2 | 2075 | 16.45 | 1849 | 40.43 | +http://www.baidu.com/search/spider.html |
| 3 | 1595 | 12.65 | 317 | 6.93 | +http://www.google.com/bot.html |
| 4 | 1193 | 9.46 | 283 | 6.19 | +http://www.bing.com/bingbot.htm |
| 5 | 1148 | 9.10 | 80 | 1.75 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 884 | 7.01 | 53 | 1.16 | Windows 98 |
| 7 | 395 | 3.13 | 53 | 1.16 | +http://yandex.com/bots |
| 8 | 130 | 1.03 | 2 | 0.04 | +http://endb-consolidated.aihit.com/ |
| 9 | 129 | 1.02 | 44 | 0.96 | +http://www.linkdex.com/bots/ |
| 10 | 126 | 1.00 | 50 | 1.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 95 | 0.75 | 27 | 0.59 | +http://www.easou.com/search/spider.html |
| 12 | 48 | 0.38 | 17 | 0.37 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 42 | 0.33 | 31 | 0.68 | +http://ahrefs.com/robot/ |
| 14 | 29 | 0.23 | 2 | 0.04 | Linux [unknown version] |
| 15 | 28 | 0.22 | 2 | 0.04 | +http://filterdb.iss.net/crawler/ |
| 16 | 23 | 0.18 | 2 | 0.04 | Windows 95 |
| 17 | 22 | 0.17 | 11 | 0.24 | +http://www.exabot.com/go/robot |
| 18 | 19 | 0.15 | 3 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 19 | 17 | 0.13 | 8 | 0.17 | Linux i686 [unknown version] |
| 20 | 14 | 0.11 | 5 | 0.11 | +http://gimme60.com |
| 21 | 14 | 0.11 | 7 | 0.15 | +http://fulltext.sblog.cz/ |
| 22 | 13 | 0.10 | 11 | 0.24 | +http://wmaid.com/explore/ |
| 23 | 11 | 0.09 | 8 | 0.17 | X11 |
| 24 | 11 | 0.09 | 1 | 0.02 | WinHttp.WinHttpRequest.5 |
| 25 | 10 | 0.08 | 2 | 0.04 | +http://www.profound.net/urlappendbot.ht... |
| 26 | 7 | 0.06 | 2 | 0.04 | Android 2.3.5 |
| 27 | 6 | 0.05 | 2 | 0.04 | http://help.yahoo.com/help/us/ysearch/sl... |
| 28 | 6 | 0.05 | 3 | 0.07 | http://crawler.sistrix.net/ |
| 29 | 6 | 0.05 | 0 | 0.00 | Windows ME |
| 30 | 6 | 0.05 | 1 | 0.02 | +http://freedlf.com/ |
| 31 | 4 | 0.03 | 2 | 0.04 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 3 | 0.02 | 1 | 0.02 | +info@netcraft.com |
| 33 | 2 | 0.02 | 2 | 0.04 | OpenBSD [unknown version] |
| 34 | 2 | 0.02 | 2 | 0.04 | +http://136.186.231.16 |
| 35 | 2 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 36 | 2 | 0.02 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 37 | 2 | 0.02 | 1 | 0.02 | +http://www.semrush.com/bot.html |
| 38 | 1 | 0.01 | 1 | 0.02 | netbox; Linux 2.2 |
| 39 | 1 | 0.01 | 1 | 0.02 | +http://about.ask.com/en/docs/about/webm... |
| 40 | 1 | 0.01 | 1 | 0.02 | +http://monoid.nic.ru/ |
