| Used Operating Systems |
| 1 | 2780 | 28.47 | 2333 | 51.55 | +http://www.baidu.com/search/spider.html |
| 2 | 1887 | 19.32 | 1054 | 23.29 | Windows NT |
| 3 | 1004 | 10.28 | 244 | 5.39 | +http://www.bing.com/bingbot.htm |
| 4 | 699 | 7.16 | 108 | 2.39 | +http://yandex.com/bots |
| 5 | 549 | 5.62 | 234 | 5.17 | +http://www.google.com/bot.html |
| 6 | 386 | 3.95 | 96 | 2.12 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 7 | 348 | 3.56 | 12 | 0.27 | http://www.searchmetrics.com/en/searchme... |
| 8 | 319 | 3.27 | 167 | 3.69 | +http://ahrefs.com/robot/ |
| 9 | 288 | 2.95 | 3 | 0.07 | +http://www.seokicks.de/robot.html |
| 10 | 260 | 2.66 | 2 | 0.04 | +http://www.warebay.com/bot.html |
| 11 | 252 | 2.58 | 2 | 0.04 | +http://webmeup-crawler.com/ |
| 12 | 210 | 2.15 | 103 | 2.28 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 188 | 1.93 | 45 | 0.99 | http://www.majestic12.co.uk/bot.php?+ |
| 14 | 158 | 1.62 | 8 | 0.18 | +http://fulltext.sblog.cz/ |
| 15 | 139 | 1.42 | 1 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 16 | 57 | 0.58 | 23 | 0.51 | http://www.opensiteexplorer.org/dotbot, ... |
| 17 | 56 | 0.57 | 22 | 0.49 | +http://www.exabot.com/go/robot |
| 18 | 34 | 0.35 | 12 | 0.27 | +http://www.xovibot.net/ |
| 19 | 22 | 0.23 | 2 | 0.04 | +http://www.easou.com/search/spider.html |
| 20 | 18 | 0.18 | 1 | 0.02 | crawler@mixrank.com |
| 21 | 16 | 0.16 | 8 | 0.18 | http://crawler.sistrix.net/ |
| 22 | 14 | 0.14 | 7 | 0.15 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 11 | 0.11 | 10 | 0.22 | +info@netcraft.com |
| 24 | 9 | 0.09 | 1 | 0.02 | WinHttp.WinHttpRequest.5 |
| 25 | 8 | 0.08 | 2 | 0.04 | +http://downloadmine.biz |
| 26 | 8 | 0.08 | 2 | 0.04 | +http://mercedes-w123.net |
| 27 | 8 | 0.08 | 2 | 0.04 | +http://medialine-it.com |
| 28 | 8 | 0.08 | 3 | 0.07 | +; |
| 29 | 7 | 0.07 | 7 | 0.15 | +http://domainsigma.com/robot |
| 30 | 4 | 0.04 | 1 | 0.02 | +http://trumpetsheetmusic.org |
| 31 | 4 | 0.04 | 2 | 0.04 | +http://duckduckgo.com |
| 32 | 3 | 0.03 | 1 | 0.02 | +http://isdownload.biz |
| 33 | 2 | 0.02 | 2 | 0.04 | +http://fb02itsscan.fh-muenster.de |
| 34 | 2 | 0.02 | 1 | 0.02 | +https://www.mojeek.com/bot.html |
| 35 | 2 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 36 | 2 | 0.02 | 2 | 0.04 | Linux i686 [unknown version] |
| 37 | 1 | 0.01 | 1 | 0.02 | SunOS |
| 38 | 1 | 0.01 | 1 | 0.02 | +http://gimme60.com |
| 39 | 1 | 0.01 | 1 | 0.02 | Windows 98 |
