| Used Operating Systems |
| 1 | 14114 | 39.77 | 144 | 2.24 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4689 | 13.21 | 1223 | 19.06 | +http://ahrefs.com/robot/ |
| 3 | 4553 | 12.83 | 1595 | 24.85 | Windows NT |
| 4 | 3440 | 9.69 | 1 | 0.02 | +http://megaindex.com/crawler |
| 5 | 2278 | 6.42 | 353 | 5.50 | +http://www.bing.com/bingbot.htm |
| 6 | 2072 | 5.84 | 1914 | 29.82 | +http://www.baidu.com/search/spider.html |
| 7 | 1022 | 2.88 | 157 | 2.45 | +http://yandex.com/bots |
| 8 | 714 | 2.01 | 433 | 6.75 | +http://www.google.com/bot.html |
| 9 | 518 | 1.46 | 57 | 0.89 | +http://fulltext.sblog.cz/ |
| 10 | 513 | 1.45 | 4 | 0.06 | +http://www.warebay.com/bot.html |
| 11 | 431 | 1.21 | 227 | 3.54 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 351 | 0.99 | 71 | 1.11 | +http://www.linkdex.com/bots/ |
| 13 | 235 | 0.66 | 78 | 1.22 | +http://www.profound.net/domainappender |
| 14 | 204 | 0.57 | 4 | 0.06 | +https://www.aihitdata.com/about |
| 15 | 89 | 0.25 | 86 | 1.34 | +http://www.xovibot.net/ |
| 16 | 77 | 0.22 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 17 | 41 | 0.12 | 1 | 0.02 | +http://import.io |
| 18 | 30 | 0.08 | 12 | 0.19 | +http://www.semrush.com/bot.html |
| 19 | 22 | 0.06 | 11 | 0.17 | +http://duckduckgo.com |
| 20 | 16 | 0.05 | 9 | 0.14 | +http://www.exabot.com/go/robot |
| 21 | 13 | 0.04 | 5 | 0.08 | X11 |
| 22 | 10 | 0.03 | 4 | 0.06 | http://www.botje.com/plukkie.htm |
| 23 | 9 | 0.03 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 24 | 8 | 0.02 | 4 | 0.06 | +http://www.meanpath.com/meanpathbot.htm... |
| 25 | 6 | 0.02 | 6 | 0.09 | Linux i686 [unknown version] |
| 26 | 5 | 0.01 | 0 | 0.00 | Android 2.3.5 |
| 27 | 4 | 0.01 | 2 | 0.03 | +http://sur.ly/bot.html |
| 28 | 4 | 0.01 | 1 | 0.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 29 | 4 | 0.01 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 30 | 3 | 0.01 | 2 | 0.03 | Windows 95 |
| 31 | 2 | 0.01 | 2 | 0.03 | Windows Phone OS 7.5 |
| 32 | 2 | 0.01 | 1 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 33 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 34 | 2 | 0.01 | 0 | 0.00 | Windows Phone OS 7.0; Trident/3.1; IEMob... |
| 35 | 2 | 0.01 | 2 | 0.03 | Macintosh |
| 36 | 1 | 0.00 | 1 | 0.02 | Windows CE |
| 37 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 38 | 1 | 0.00 | 0 | 0.00 | +http://glutenfreepleasure.com/ |
| 39 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 40 | 1 | 0.00 | 1 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 41 | 1 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 42 | 1 | 0.00 | 1 | 0.02 | Windows 98 |
