| Used Operating Systems |
| 1 | 23095 | 21.79 | 864 | 6.24 | +http://yandex.com/bots |
| 2 | 22954 | 21.65 | 6175 | 44.61 | +http://ahrefs.com/robot/ |
| 3 | 18266 | 17.23 | 171 | 1.24 | http://mj12bot.com/ |
| 4 | 10451 | 9.86 | 2 | 0.01 | +http://megaindex.com/crawler |
| 5 | 6767 | 6.38 | 1537 | 11.10 | Windows NT |
| 6 | 6441 | 6.08 | 418 | 3.02 | +http://www.bing.com/bingbot.htm |
| 7 | 3602 | 3.40 | 34 | 0.25 | +http://www.semrush.com/bot.html |
| 8 | 3085 | 2.91 | 2599 | 18.77 | +http://www.baidu.com/search/spider.html |
| 9 | 2491 | 2.35 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 10 | 2324 | 2.19 | 15 | 0.11 | http://www.majestic12.co.uk/bot.php?+ |
| 11 | 1749 | 1.65 | 757 | 5.47 | +http://www.google.com/bot.html |
| 12 | 900 | 0.85 | 10 | 0.07 | +http://siteexplorer.info/Backlink-Check... |
| 13 | 896 | 0.85 | 569 | 4.11 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 658 | 0.62 | 170 | 1.23 | +http://www.linkdex.com/bots/ |
| 15 | 524 | 0.49 | 5 | 0.04 | +http://www.warebay.com/bot.html |
| 16 | 475 | 0.45 | 63 | 0.46 | http://www.opensiteexplorer.org/dotbot, ... |
| 17 | 338 | 0.32 | 11 | 0.08 | +http://napoveda.seznam.cz/en/seznambot-... |
| 18 | 177 | 0.17 | 59 | 0.43 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 19 | 128 | 0.12 | 32 | 0.23 | +http://www.profound.net/domainappender |
| 20 | 110 | 0.10 | 73 | 0.53 | Windows 95 |
| 21 | 80 | 0.08 | 18 | 0.13 | Windows 98 |
| 22 | 73 | 0.07 | 71 | 0.51 | +http://www.uptime.com/uptimebot |
| 23 | 64 | 0.06 | 31 | 0.22 | +http://duckduckgo.com |
| 24 | 58 | 0.05 | 17 | 0.12 | Windows XP |
| 25 | 48 | 0.05 | 16 | 0.12 | +http://www.exabot.com/go/robot |
| 26 | 36 | 0.03 | 4 | 0.03 | +http://www.seokicks.de/robot.html |
| 27 | 26 | 0.02 | 16 | 0.12 | Auto; Windows |
| 28 | 22 | 0.02 | 4 | 0.03 | +http://help.coccoc.com/searchengine |
| 29 | 20 | 0.02 | 16 | 0.12 | Windows CE |
| 30 | 20 | 0.02 | 13 | 0.09 | Windows 2000 |
| 31 | 19 | 0.02 | 11 | 0.08 | Windows ME |
| 32 | 16 | 0.02 | 0 | 0.00 | +http://naver.me/bot |
| 33 | 15 | 0.01 | 10 | 0.07 | MSIE 5.5; Windows NT 5.0 |
| 34 | 14 | 0.01 | 14 | 0.10 | ) - BrowseX (2.0.0 Windows |
| 35 | 11 | 0.01 | 10 | 0.07 | Windows 3.1 |
| 36 | 8 | 0.01 | 7 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 37 | 7 | 0.01 | 1 | 0.01 | http://filterdb.iss.net/crawler/ |
| 38 | 6 | 0.01 | 4 | 0.03 | +http://sur.ly/bot.html |
| 39 | 6 | 0.01 | 3 | 0.02 | +https://www.mojeek.com/bot.html |
| 40 | 4 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 41 | 3 | 0.00 | 2 | 0.01 | X11 |
| 42 | 3 | 0.00 | 2 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 43 | 2 | 0.00 | 0 | 0.00 | documents; +http://docs.google.com |
| 44 | 2 | 0.00 | 1 | 0.01 | J2ME/MIDP |
| 45 | 2 | 0.00 | 0 | 0.00 | +http://help.naver.com/support/robots.ht... |
| 46 | 2 | 0.00 | 1 | 0.01 | +spider@seoscanners.net |
| 47 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 48 | 1 | 0.00 | 0 | 0.00 | +http://filterdb.iss.net/crawler/ |
| 49 | 1 | 0.00 | 1 | 0.01 | Android |
| 50 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 51 | 1 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 52 | 1 | 0.00 | 0 | 0.00 | Nintendo Wii |
| 53 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
