| Used Operating Systems |
| 1 | 18959 | 42.53 | 12839 | 70.93 | +http://ahrefs.com/robot/ |
| 2 | 6154 | 13.80 | 691 | 3.82 | Windows NT |
| 3 | 5911 | 13.26 | 51 | 0.28 | http://mj12bot.com/ |
| 4 | 4262 | 9.56 | 3193 | 17.64 | +http://www.baidu.com/search/spider.html |
| 5 | 3005 | 6.74 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 6 | 2114 | 4.74 | 714 | 3.94 | +http://www.google.com/bot.html |
| 7 | 1528 | 3.43 | 14 | 0.08 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 821 | 1.84 | 191 | 1.06 | +http://www.linkdex.com/bots/ |
| 9 | 717 | 1.61 | 140 | 0.77 | +http://www.bing.com/bingbot.htm |
| 10 | 669 | 1.50 | 115 | 0.64 | +http://yandex.com/bots |
| 11 | 221 | 0.50 | 16 | 0.09 | +http://www.semrush.com/bot.html |
| 12 | 127 | 0.28 | 69 | 0.38 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 17 | 0.04 | 3 | 0.02 | +http://sur.ly/bot.html |
| 14 | 16 | 0.04 | 14 | 0.08 | Windows 98 |
| 15 | 15 | 0.03 | 14 | 0.08 | Windows 95 |
| 16 | 10 | 0.02 | 2 | 0.01 | http://filterdb.iss.net/crawler/ |
| 17 | 7 | 0.02 | 7 | 0.04 | Windows CE |
| 18 | 6 | 0.01 | 6 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 19 | 5 | 0.01 | 3 | 0.02 | Windows XP |
| 20 | 5 | 0.01 | 5 | 0.03 | Windows ME |
| 21 | 4 | 0.01 | 2 | 0.01 | +info@netcraft.com |
| 22 | 2 | 0.00 | 2 | 0.01 | Auto; Windows |
| 23 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 24 | 2 | 0.00 | 2 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 25 | 1 | 0.00 | 1 | 0.01 | Windows 2000 |
| 26 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
| 27 | 1 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 28 | 1 | 0.00 | 1 | 0.01 | Windows 3.1 |
