| Used Operating Systems |
| 1 | 45747 | 61.22 | 279 | 3.22 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 16707 | 22.36 | 3928 | 45.29 | Windows NT |
| 3 | 3575 | 4.78 | 2208 | 25.46 | +http://www.baidu.com/search/spider.html |
| 4 | 3234 | 4.33 | 650 | 7.49 | +http://www.bing.com/bingbot.htm |
| 5 | 1421 | 1.90 | 500 | 5.77 | +http://www.google.com/bot.html |
| 6 | 696 | 0.93 | 146 | 1.68 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 473 | 0.63 | 21 | 0.24 | http://www.searchmetrics.com/en/searchme... |
| 8 | 449 | 0.60 | 141 | 1.63 | +http://ahrefs.com/robot/ |
| 9 | 267 | 0.36 | 78 | 0.90 | +http://www.linkdex.com/bots/ |
| 10 | 244 | 0.33 | 22 | 0.25 | +http://fulltext.sblog.cz/ |
| 11 | 231 | 0.31 | 10 | 0.12 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 206 | 0.28 | 97 | 1.12 | +http://yandex.com/bots |
| 13 | 186 | 0.25 | 186 | 2.14 | +http://monasterytea.spbdyet.ru |
| 14 | 165 | 0.22 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 15 | 128 | 0.17 | 4 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 16 | 118 | 0.16 | 118 | 1.36 | +http://warifort.moykrest.ru |
| 17 | 114 | 0.15 | 31 | 0.36 | http://www.bing.com/bingbot.htm |
| 18 | 113 | 0.15 | 37 | 0.43 | http://www.opensiteexplorer.org/dotbot, ... |
| 19 | 105 | 0.14 | 71 | 0.82 | +http://www.xovibot.net/ |
| 20 | 88 | 0.12 | 11 | 0.13 | +http://www.profound.net/domainappender |
| 21 | 67 | 0.09 | 24 | 0.28 | +http://www.exabot.com/go/robot |
| 22 | 66 | 0.09 | 2 | 0.02 | +https://www.aihitdata.com/about |
| 23 | 59 | 0.08 | 0 | 0.00 | Windows Phone OS 7.0 |
| 24 | 42 | 0.06 | 21 | 0.24 | +http://duckduckgo.com |
| 25 | 35 | 0.05 | 3 | 0.03 | X11 |
| 26 | 25 | 0.03 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 27 | 24 | 0.03 | 10 | 0.12 | +http://help.coccoc.com/ |
| 28 | 24 | 0.03 | 2 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 29 | 20 | 0.03 | 10 | 0.12 | +http://www.meanpath.com/meanpathbot.htm... |
| 30 | 16 | 0.02 | 12 | 0.14 | not on Windows server; |
| 31 | 11 | 0.01 | 1 | 0.01 | crawler@mixrank.com |
| 32 | 9 | 0.01 | 9 | 0.10 | Linux [unknown version] |
| 33 | 8 | 0.01 | 8 | 0.09 | +http://www.domaintuno.com/robot |
| 34 | 7 | 0.01 | 7 | 0.08 | +http://warifort.moykrest.ru/ |
| 35 | 5 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 36 | 5 | 0.01 | 5 | 0.06 | ActiveXperts.Http |
| 37 | 4 | 0.01 | 3 | 0.03 | +http://www.grapeshot.co.uk/crawler.php |
| 38 | 3 | 0.00 | 2 | 0.02 | +https://gimmeusa.com/pages/crawler |
| 39 | 3 | 0.00 | 2 | 0.02 | +info@netcraft.com |
| 40 | 3 | 0.00 | 1 | 0.01 | +http://prlog.ru/ |
| 41 | 2 | 0.00 | 2 | 0.02 | Macintosh; Intel Mac OS X 10_7_3; Triden... |
| 42 | 2 | 0.00 | 2 | 0.02 | Intel Mac OS X 10.5 |
| 43 | 2 | 0.00 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 44 | 2 | 0.00 | 2 | 0.02 | Linux i686 [unknown version] |
| 45 | 2 | 0.00 | 2 | 0.02 | +http://megaindex.com/crawler |
| 46 | 2 | 0.00 | 0 | 0.00 | Windows 98 |
| 47 | 1 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 48 | 1 | 0.00 | 0 | 0.00 | Android 2.3.5 |
| 49 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 50 | 1 | 0.00 | 1 | 0.01 | Macintosh |
| 51 | 1 | 0.00 | 1 | 0.01 | https://help.yahoo.com/kb/mail/yahoo-lin... |
| 52 | 1 | 0.00 | 0 | 0.00 | Windows Phone OS 7.0; Trident/3.1; IEMob... |
