| Used Operating Systems |
| 1 | 31408 | 34.52 | 281 | 1.54 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 17379 | 19.10 | 907 | 4.98 | Windows NT |
| 3 | 14111 | 15.51 | 9075 | 49.85 | +http://ahrefs.com/robot/ |
| 4 | 7535 | 8.28 | 5230 | 28.73 | +http://www.baidu.com/search/spider.html |
| 5 | 6239 | 6.86 | 642 | 3.53 | +http://yandex.com/bots |
| 6 | 5007 | 5.50 | 5 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 4700 | 5.17 | 395 | 2.17 | +http://www.bing.com/bingbot.htm |
| 8 | 2139 | 2.35 | 827 | 4.54 | +http://www.google.com/bot.html |
| 9 | 562 | 0.62 | 407 | 2.24 | +http://www.xovibot.net/ |
| 10 | 438 | 0.48 | 82 | 0.45 | +http://www.exabot.com/go/robot |
| 11 | 349 | 0.38 | 113 | 0.62 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 314 | 0.35 | 4 | 0.02 | +http://siteexplorer.info/ |
| 13 | 221 | 0.24 | 37 | 0.20 | +http://www.linkdex.com/bots/ |
| 14 | 125 | 0.14 | 51 | 0.28 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 79 | 0.09 | 32 | 0.18 | Windows 95 |
| 16 | 61 | 0.07 | 30 | 0.16 | +http://sur.ly/bot.html |
| 17 | 55 | 0.06 | 10 | 0.05 | Windows 98 |
| 18 | 50 | 0.05 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 19 | 30 | 0.03 | 11 | 0.06 | Windows XP |
| 20 | 24 | 0.03 | 7 | 0.04 | Windows 3.1 |
| 21 | 19 | 0.02 | 4 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 22 | 18 | 0.02 | 16 | 0.09 | +info@netcraft.com |
| 23 | 15 | 0.02 | 5 | 0.03 | Windows ME |
| 24 | 14 | 0.02 | 2 | 0.01 | http://filterdb.iss.net/crawler/ |
| 25 | 14 | 0.02 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 26 | 12 | 0.01 | 4 | 0.02 | Windows CE |
| 27 | 10 | 0.01 | 3 | 0.02 | +spider@seoscanners.net |
| 28 | 9 | 0.01 | 1 | 0.01 | Windows 2000 |
| 29 | 8 | 0.01 | 4 | 0.02 | +http://duckduckgo.com |
| 30 | 5 | 0.01 | 2 | 0.01 | +http://www.uptime.com/uptimebot |
| 31 | 4 | 0.00 | 4 | 0.02 | Auto; Windows |
| 32 | 4 | 0.00 | 3 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 33 | 4 | 0.00 | 3 | 0.02 | WinHttp.WinHttpRequest.5 |
| 34 | 2 | 0.00 | 2 | 0.01 | Android |
| 35 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 36 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 37 | 2 | 0.00 | 2 | 0.01 | Linux [unknown version] |
| 38 | 1 | 0.00 | 1 | 0.01 | +https://rankval.com |
| 39 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
