| Used Operating Systems |
| 1 | 7578 | 36.62 | 2432 | 46.90 | +http://ahrefs.com/robot/ |
| 2 | 6616 | 31.97 | 92 | 1.77 | http://mj12bot.com/ |
| 3 | 2617 | 12.65 | 1300 | 25.07 | Windows NT |
| 4 | 1073 | 5.18 | 141 | 2.72 | +http://yandex.com/bots |
| 5 | 782 | 3.78 | 504 | 9.72 | +http://www.baidu.com/search/spider.html |
| 6 | 692 | 3.34 | 129 | 2.49 | +http://www.google.com/bot.html |
| 7 | 386 | 1.87 | 84 | 1.62 | +http://www.bing.com/bingbot.htm |
| 8 | 231 | 1.12 | 111 | 2.14 | +http://www.semrush.com/bot.html |
| 9 | 147 | 0.71 | 123 | 2.37 | Windows 95 |
| 10 | 90 | 0.43 | 17 | 0.33 | +http://www.exabot.com/go/robot |
| 11 | 81 | 0.39 | 34 | 0.66 | Windows 98 |
| 12 | 78 | 0.38 | 2 | 0.04 | +http://filterdb.iss.net/crawler/ |
| 13 | 48 | 0.23 | 24 | 0.46 | +http://www.linkdex.com/bots/ |
| 14 | 34 | 0.16 | 27 | 0.52 | Windows 3.1 |
| 15 | 28 | 0.14 | 28 | 0.54 | Auto; Windows |
| 16 | 28 | 0.14 | 23 | 0.44 | Windows ME |
| 17 | 24 | 0.12 | 20 | 0.39 | ) - BrowseX (2.0.0 Windows |
| 18 | 21 | 0.10 | 19 | 0.37 | Windows CE |
| 19 | 21 | 0.10 | 18 | 0.35 | Windows 2000 |
| 20 | 21 | 0.10 | 7 | 0.13 | Windows XP |
| 21 | 20 | 0.10 | 18 | 0.35 | MSIE 5.5; Windows NT 4.0 |
| 22 | 17 | 0.08 | 3 | 0.06 | http://help.yahoo.com/help/us/ysearch/sl... |
| 23 | 17 | 0.08 | 15 | 0.29 | MSIE 5.5; Windows NT 5.0 |
| 24 | 8 | 0.04 | 4 | 0.08 | +http://cs.daum.net/faq/15/4118.html?faq... |
| 25 | 8 | 0.04 | 4 | 0.08 | +http://www.pinterest.com/bot.html |
| 26 | 8 | 0.04 | 2 | 0.04 | http://filterdb.iss.net/crawler/ |
| 27 | 6 | 0.03 | 0 | 0.00 | +http://siteexplorer.info/Backlink-Check... |
| 28 | 4 | 0.02 | 0 | 0.00 | Mail.RU_Bot/Img/2.0; +http://go.mail.ru/... |
| 29 | 4 | 0.02 | 0 | 0.00 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 30 | 4 | 0.02 | 2 | 0.04 | http://www.majestic12.co.uk/bot.php?+ |
| 31 | 2 | 0.01 | 2 | 0.04 | +info@netcraft.com |
| 32 | 1 | 0.00 | 1 | 0.02 | crawler@mixrank.com |
