| Used Operating Systems |
| 1 | 38577 | 47.83 | 309 | 2.67 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 30348 | 37.63 | 6366 | 55.06 | Windows NT |
| 3 | 2310 | 2.86 | 1804 | 15.60 | +http://www.baidu.com/search/spider.html |
| 4 | 1824 | 2.26 | 481 | 4.16 | +http://www.bing.com/bingbot.htm |
| 5 | 1519 | 1.88 | 575 | 4.97 | +http://www.google.com/bot.html |
| 6 | 879 | 1.09 | 452 | 3.91 | Windows 95 |
| 7 | 575 | 0.71 | 52 | 0.45 | Windows 98 |
| 8 | 510 | 0.63 | 149 | 1.29 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 377 | 0.47 | 65 | 0.56 | +http://yandex.com/bots |
| 10 | 356 | 0.44 | 105 | 0.91 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 261 | 0.32 | 83 | 0.72 | +http://www.linkdex.com/bots/ |
| 12 | 241 | 0.30 | 27 | 0.23 | +http://siteexplorer.info/ |
| 13 | 220 | 0.27 | 10 | 0.09 | http://www.searchmetrics.com/en/searchme... |
| 14 | 189 | 0.23 | 107 | 0.93 | +http://www.easou.com/search/spider.html |
| 15 | 161 | 0.20 | 108 | 0.93 | MSIE 5.5; Windows NT 5.0 |
| 16 | 153 | 0.19 | 105 | 0.91 | MSIE 5.5; Windows NT 4.0 |
| 17 | 151 | 0.19 | 3 | 0.03 | Windows XP |
| 18 | 142 | 0.18 | 105 | 0.91 | Windows CE |
| 19 | 137 | 0.17 | 82 | 0.71 | Windows ME |
| 20 | 137 | 0.17 | 102 | 0.88 | ) - BrowseX (2.0.0 Windows |
| 21 | 136 | 0.17 | 94 | 0.81 | Auto; Windows |
| 22 | 133 | 0.16 | 92 | 0.80 | Windows 2000 |
| 23 | 126 | 0.16 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 24 | 117 | 0.15 | 64 | 0.55 | Windows 3.1 |
| 25 | 95 | 0.12 | 52 | 0.45 | +http://ahrefs.com/robot/ |
| 26 | 84 | 0.10 | 2 | 0.02 | +http://www.seokicks.de/robot.html |
| 27 | 76 | 0.09 | 2 | 0.02 | http://www.lipperhey.com/ |
| 28 | 75 | 0.09 | 15 | 0.13 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 29 | 68 | 0.08 | 2 | 0.02 | +http://endb-consolidated.aihit.com/ |
| 30 | 62 | 0.08 | 2 | 0.02 | http://crawler.sistrix.net/ |
| 31 | 61 | 0.08 | 22 | 0.19 | +http://www.exabot.com/go/robot |
| 32 | 55 | 0.07 | 0 | 0.00 | Windows Phone OS 7.0 |
| 33 | 54 | 0.07 | 14 | 0.12 | +http://fulltext.sblog.cz/ |
| 34 | 50 | 0.06 | 2 | 0.02 | Intel Mac OS X 10.5 |
| 35 | 48 | 0.06 | 22 | 0.19 | +http://www.meanpath.com/meanpathbot.htm... |
| 36 | 37 | 0.05 | 1 | 0.01 | Windows 99 |
| 37 | 34 | 0.04 | 0 | 0.00 | Windows Phone OS 7.5 |
| 38 | 29 | 0.04 | 2 | 0.02 | +http://nlp.fi.muni.cz/projects/biwec/ |
| 39 | 28 | 0.03 | 6 | 0.05 | Linux i686 [unknown version] |
| 40 | 28 | 0.03 | 9 | 0.08 | +http://www.idmarch.org/bot.html |
| 41 | 23 | 0.03 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 42 | 20 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 43 | 17 | 0.02 | 1 | 0.01 | Windows 92 |
| 44 | 16 | 0.02 | 16 | 0.14 | +http://www.xovibot.net/ |
| 45 | 15 | 0.02 | 1 | 0.01 | Android |
| 46 | 15 | 0.02 | 13 | 0.11 | +info@netcraft.com |
| 47 | 10 | 0.01 | 2 | 0.02 | +http://overx50.com |
| 48 | 10 | 0.01 | 3 | 0.03 | X11 |
| 49 | 10 | 0.01 | 3 | 0.03 | +http://mydownloadengine.com |
| 50 | 6 | 0.01 | 3 | 0.03 | +http://wmaid.com/explore/ |
| 51 | 6 | 0.01 | 2 | 0.02 | +http://prlog.ru/ |
| 52 | 6 | 0.01 | 2 | 0.02 | +http://inload.me |
| 53 | 5 | 0.01 | 5 | 0.04 | Linux [unknown version] |
| 54 | 5 | 0.01 | 0 | 0.00 | AOL 9.7; AOLBuild 4343.2039; Windows NT ... |
| 55 | 5 | 0.01 | 1 | 0.01 | +http://a14download.com |
| 56 | 4 | 0.00 | 1 | 0.01 | +http://uni5download.com |
| 57 | 4 | 0.00 | 4 | 0.03 | +http://fb02itsscan.fh-muenster.de |
| 58 | 3 | 0.00 | 2 | 0.02 | OpenBSD [unknown version] |
| 59 | 3 | 0.00 | 0 | 0.00 | Win32 |
| 60 | 3 | 0.00 | 1 | 0.01 | +http://downloaflare.biz |
| 61 | 3 | 0.00 | 0 | 0.00 | Linux 2.4.x |
| 62 | 3 | 0.00 | 2 | 0.02 | Android 2.3.5 |
| 63 | 2 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 64 | 1 | 0.00 | 1 | 0.01 | https://help.yahoo.com/kb/mail/yahoo-lin... |
| 65 | 1 | 0.00 | 1 | 0.01 | +http://gimme60.com |
