| Used Operating Systems |
| 1 | 18452 | 35.77 | 5183 | 43.41 | +http://ahrefs.com/robot/ |
| 2 | 9182 | 17.80 | 587 | 4.92 | +http://www.bing.com/bingbot.htm |
| 3 | 4291 | 8.32 | 1197 | 10.03 | Windows NT |
| 4 | 3005 | 5.82 | 3 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 5 | 2964 | 5.75 | 1128 | 9.45 | +http://www.google.com/bot.html |
| 6 | 2802 | 5.43 | 2527 | 21.17 | +http://www.baidu.com/search/spider.html |
| 7 | 2759 | 5.35 | 35 | 0.29 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 2131 | 4.13 | 207 | 1.73 | +http://yandex.com/bots |
| 9 | 1847 | 3.58 | 37 | 0.31 | http://mj12bot.com/ |
| 10 | 1085 | 2.10 | 584 | 4.89 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 693 | 1.34 | 4 | 0.03 | +http://siteexplorer.info/Backlink-Check... |
| 12 | 544 | 1.05 | 136 | 1.14 | +http://www.linkdex.com/bots/ |
| 13 | 422 | 0.82 | 10 | 0.08 | +http://napoveda.seznam.cz/en/seznambot-... |
| 14 | 353 | 0.68 | 2 | 0.02 | +http://siteexplorer.info/ |
| 15 | 231 | 0.45 | 79 | 0.66 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 97 | 0.19 | 2 | 0.02 | +http://www.semrush.com/bot.html |
| 17 | 89 | 0.17 | 39 | 0.33 | Windows 95 |
| 18 | 82 | 0.16 | 14 | 0.12 | +https://www.mojeek.com/bot.html |
| 19 | 79 | 0.15 | 3 | 0.03 | Linux [unknown version] |
| 20 | 68 | 0.13 | 27 | 0.23 | Windows XP |
| 21 | 60 | 0.12 | 29 | 0.24 | +http://duckduckgo.com |
| 22 | 40 | 0.08 | 17 | 0.14 | Windows 98 |
| 23 | 38 | 0.07 | 19 | 0.16 | +http://www.exabot.com/go/robot |
| 24 | 36 | 0.07 | 4 | 0.03 | +http://www.seokicks.de/robot.html |
| 25 | 34 | 0.07 | 2 | 0.02 | +http://webmeup-crawler.com/ |
| 26 | 24 | 0.05 | 7 | 0.06 | Windows ME |
| 27 | 19 | 0.04 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 28 | 18 | 0.03 | 3 | 0.03 | +http://help.coccoc.com/searchengine |
| 29 | 16 | 0.03 | 1 | 0.01 | +http://www.linkpad.ru |
| 30 | 15 | 0.03 | 7 | 0.06 | Windows CE |
| 31 | 14 | 0.03 | 2 | 0.02 | http://filterdb.iss.net/crawler/ |
| 32 | 13 | 0.03 | 7 | 0.06 | ) - BrowseX (2.0.0 Windows |
| 33 | 13 | 0.03 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 34 | 11 | 0.02 | 7 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 35 | 9 | 0.02 | 5 | 0.04 | Windows 3.1 |
| 36 | 8 | 0.02 | 0 | 0.00 | Windows 9. |
| 37 | 7 | 0.01 | 3 | 0.03 | Windows 2000 |
| 38 | 6 | 0.01 | 4 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 39 | 5 | 0.01 | 3 | 0.03 | Auto; Windows |
| 40 | 5 | 0.01 | 5 | 0.04 | Linux i686 [unknown version] |
| 41 | 3 | 0.01 | 1 | 0.01 | +http://sur.ly/bot.html |
| 42 | 2 | 0.00 | 0 | 0.00 | documents; +http://docs.google.com |
| 43 | 2 | 0.00 | 0 | 0.00 | Android |
| 44 | 2 | 0.00 | 1 | 0.01 | +http://glutenfreepleasure.com/ |
| 45 | 2 | 0.00 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 46 | 2 | 0.00 | 0 | 0.00 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 47 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 48 | 2 | 0.00 | 0 | 0.00 | +http://help.naver.com/support/robots.ht... |
| 49 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 50 | 1 | 0.00 | 1 | 0.01 | +https://github.com/ViDA-NYU/ache; |
| 51 | 1 | 0.00 | 0 | 0.00 | BREW |
| 52 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 53 | 1 | 0.00 | 1 | 0.01 | Linux i586 [unknown version] |
| 54 | 1 | 0.00 | 1 | 0.01 | Android 2.3.5 |
