| Used Operating Systems |
| 1 | 11499 | 40.36 | 261 | 2.84 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8256 | 28.98 | 3456 | 37.59 | Windows NT |
| 3 | 3467 | 12.17 | 2865 | 31.16 | +http://www.baidu.com/search/spider.html |
| 4 | 1370 | 4.81 | 556 | 6.05 | +http://ahrefs.com/robot/ |
| 5 | 1098 | 3.85 | 771 | 8.38 | +http://www.google.com/bot.html |
| 6 | 834 | 2.93 | 176 | 1.91 | +http://yandex.com/bots |
| 7 | 374 | 1.31 | 135 | 1.47 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 297 | 1.04 | 211 | 2.29 | +http://www.linkdex.com/bots/ |
| 9 | 237 | 0.83 | 202 | 2.20 | Windows 95 |
| 10 | 208 | 0.73 | 105 | 1.14 | +http://www.bing.com/bingbot.htm |
| 11 | 186 | 0.65 | 44 | 0.48 | Windows 98 |
| 12 | 73 | 0.26 | 56 | 0.61 | Windows 3.1 |
| 13 | 46 | 0.16 | 38 | 0.41 | Auto; Windows |
| 14 | 46 | 0.16 | 38 | 0.41 | MSIE 5.5; Windows NT 5.0 |
| 15 | 45 | 0.16 | 44 | 0.48 | Windows 2000 |
| 16 | 42 | 0.15 | 37 | 0.40 | ) - BrowseX (2.0.0 Windows |
| 17 | 41 | 0.14 | 6 | 0.07 | +http://fulltext.sblog.cz/ |
| 18 | 39 | 0.14 | 35 | 0.38 | Windows CE |
| 19 | 39 | 0.14 | 31 | 0.34 | Windows ME |
| 20 | 37 | 0.13 | 1 | 0.01 | Windows XP |
| 21 | 36 | 0.13 | 33 | 0.36 | MSIE 5.5; Windows NT 4.0 |
| 22 | 23 | 0.08 | 13 | 0.14 | +http://www.semrush.com/bot.html |
| 23 | 22 | 0.08 | 9 | 0.10 | http://help.yahoo.com/help/us/ysearch/sl... |
| 24 | 20 | 0.07 | 2 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 25 | 17 | 0.06 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 26 | 14 | 0.05 | 6 | 0.07 | +http://www.findxbot.com |
| 27 | 14 | 0.05 | 7 | 0.08 | +http://www.meanpath.com/meanpathbot.htm... |
| 28 | 12 | 0.04 | 6 | 0.07 | +http://www.exabot.com/go/robot |
| 29 | 11 | 0.04 | 4 | 0.04 | X11 |
| 30 | 10 | 0.04 | 1 | 0.01 | +https://www.aihitdata.com/about |
| 31 | 10 | 0.04 | 2 | 0.02 | +http://www.profound.net/domainappender |
| 32 | 8 | 0.03 | 4 | 0.04 | +http://duckduckgo.com |
| 33 | 5 | 0.02 | 5 | 0.05 | +http://pmoz.info/doc/botinfo.htm |
| 34 | 5 | 0.02 | 5 | 0.05 | Linux [unknown version] |
| 35 | 5 | 0.02 | 3 | 0.03 | +https://www.mojeek.com/bot.html |
| 36 | 4 | 0.01 | 3 | 0.03 | http://www.bing.com/bingbot.htm |
| 37 | 4 | 0.01 | 2 | 0.02 | +http://help.coccoc.com/ |
| 38 | 4 | 0.01 | 2 | 0.02 | +http://botw.org |
| 39 | 4 | 0.01 | 1 | 0.01 | +http://downloadg5.com |
| 40 | 3 | 0.01 | 1 | 0.01 | http://www.lipperhey.com/ |
| 41 | 3 | 0.01 | 1 | 0.01 | Android 2.3.5 |
| 42 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 43 | 3 | 0.01 | 3 | 0.03 | +http://www.xovibot.net/ |
| 44 | 2 | 0.01 | 2 | 0.02 | OpenBSD [unknown version] |
| 45 | 2 | 0.01 | 2 | 0.02 | Android |
| 46 | 2 | 0.01 | 2 | 0.02 | Linux i686 [unknown version] |
| 47 | 2 | 0.01 | 1 | 0.01 | +http://gimme60.com |
| 48 | 2 | 0.01 | 1 | 0.01 | +http://advbot.org/bot.html |
| 49 | 1 | 0.00 | 1 | 0.01 | +http://www.linkpad.ru |
| 50 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 51 | 1 | 0.00 | 1 | 0.01 | WinHttp.WinHttpRequest.5 |
| 52 | 1 | 0.00 | 0 | 0.00 | CEMENT |
| 53 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
