| Used Operating Systems |
| 1 | 9404 | 27.40 | 3987 | 52.94 | +http://ahrefs.com/robot/ |
| 2 | 7965 | 23.21 | 9 | 0.12 | +http://webmeup-crawler.com/ |
| 3 | 4699 | 13.69 | 1824 | 24.22 | +http://www.baidu.com/search/spider.html |
| 4 | 4005 | 11.67 | 4 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 5 | 2413 | 7.03 | 688 | 9.14 | Windows NT |
| 6 | 1844 | 5.37 | 73 | 0.97 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 1215 | 3.54 | 56 | 0.74 | http://mj12bot.com/ |
| 8 | 616 | 1.79 | 145 | 1.93 | +http://www.linkdex.com/bots/ |
| 9 | 427 | 1.24 | 197 | 2.62 | +http://www.bing.com/bingbot.htm |
| 10 | 426 | 1.24 | 121 | 1.61 | +http://napoveda.seznam.cz/en/seznambot-... |
| 11 | 359 | 1.05 | 136 | 1.81 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 348 | 1.01 | 143 | 1.90 | +http://www.google.com/bot.html |
| 13 | 234 | 0.68 | 75 | 1.00 | +http://yandex.com/bots |
| 14 | 175 | 0.51 | 9 | 0.12 | +http://www.semrush.com/bot.html |
| 15 | 49 | 0.14 | 18 | 0.24 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 46 | 0.13 | 18 | 0.24 | +http://www.exabot.com/go/robot |
| 17 | 45 | 0.13 | 5 | 0.07 | +http://www.seokicks.de/robot.html |
| 18 | 26 | 0.08 | 2 | 0.03 | +https://www.dataprovider.com/ |
| 19 | 6 | 0.02 | 2 | 0.03 | +http://siteexplorer.info/Backlink-Check... |
| 20 | 5 | 0.01 | 5 | 0.07 | Windows 95 |
| 21 | 2 | 0.01 | 2 | 0.03 | Linux [unknown version] |
| 22 | 2 | 0.01 | 1 | 0.01 | Windows 3.1 |
| 23 | 2 | 0.01 | 2 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 24 | 2 | 0.01 | 2 | 0.03 | +http://www.uptime.com/uptimebot |
| 25 | 2 | 0.01 | 2 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 26 | 2 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 27 | 1 | 0.00 | 1 | 0.01 | Windows 2000 |
| 28 | 1 | 0.00 | 1 | 0.01 | Windows CE |
| 29 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 30 | 1 | 0.00 | 1 | 0.01 | Windows 98 |
| 31 | 1 | 0.00 | 1 | 0.01 | +info@netcraft.com |
