| Used Operating Systems |
| 1 | 19154 | 30.33 | 189 | 1.07 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 12031 | 19.05 | 8462 | 47.72 | +http://ahrefs.com/robot/ |
| 3 | 9790 | 15.50 | 532 | 3.00 | +http://yandex.com/bots |
| 4 | 7111 | 11.26 | 5589 | 31.52 | +http://www.baidu.com/search/spider.html |
| 5 | 5980 | 9.47 | 1353 | 7.63 | Windows NT |
| 6 | 3006 | 4.76 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 7 | 1823 | 2.89 | 251 | 1.42 | +http://www.bing.com/bingbot.htm |
| 8 | 1436 | 2.27 | 632 | 3.56 | +http://www.google.com/bot.html |
| 9 | 789 | 1.25 | 6 | 0.03 | +http://siteexplorer.info/ |
| 10 | 582 | 0.92 | 196 | 1.11 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 469 | 0.74 | 92 | 0.52 | +http://www.linkdex.com/bots/ |
| 12 | 294 | 0.47 | 67 | 0.38 | +http://www.exabot.com/go/robot |
| 13 | 108 | 0.17 | 85 | 0.48 | Windows 95 |
| 14 | 100 | 0.16 | 65 | 0.37 | +http://www.xovibot.net/ |
| 15 | 71 | 0.11 | 41 | 0.23 | Windows 98 |
| 16 | 52 | 0.08 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 17 | 36 | 0.06 | 18 | 0.10 | MSIE 5.5; Windows NT 4.0 |
| 18 | 33 | 0.05 | 5 | 0.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 19 | 32 | 0.05 | 15 | 0.08 | Windows XP |
| 20 | 32 | 0.05 | 14 | 0.08 | Windows ME |
| 21 | 31 | 0.05 | 5 | 0.03 | +spider@seoscanners.net |
| 22 | 30 | 0.05 | 19 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 23 | 25 | 0.04 | 17 | 0.10 | Windows CE |
| 24 | 21 | 0.03 | 3 | 0.02 | http://filterdb.iss.net/crawler/ |
| 25 | 20 | 0.03 | 16 | 0.09 | Windows 2000 |
| 26 | 20 | 0.03 | 14 | 0.08 | Windows 3.1 |
| 27 | 15 | 0.02 | 1 | 0.01 | +http://sur.ly/bot.html |
| 28 | 14 | 0.02 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 29 | 13 | 0.02 | 13 | 0.07 | ) - BrowseX (2.0.0 Windows |
| 30 | 12 | 0.02 | 10 | 0.06 | Auto; Windows |
| 31 | 12 | 0.02 | 11 | 0.06 | +info@netcraft.com |
| 32 | 6 | 0.01 | 3 | 0.02 | +http://duckduckgo.com |
| 33 | 4 | 0.01 | 4 | 0.02 | +http://www.uptime.com/uptimebot |
| 34 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
| 35 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
