| Used Operating Systems |
| 1 | 41943 | 33.96 | 270 | 1.11 | http://mj12bot.com/ |
| 2 | 32769 | 26.53 | 17266 | 71.16 | +http://ahrefs.com/robot/ |
| 3 | 19352 | 15.67 | 449 | 1.85 | +http://yandex.com/bots |
| 4 | 9813 | 7.95 | 447 | 1.84 | http://www.opensiteexplorer.org/dotbot, ... |
| 5 | 5801 | 4.70 | 4002 | 16.49 | +http://www.baidu.com/search/spider.html |
| 6 | 5354 | 4.34 | 2 | 0.01 | +http://megaindex.com/crawler |
| 7 | 2701 | 2.19 | 715 | 2.95 | Windows NT |
| 8 | 1671 | 1.35 | 362 | 1.49 | +http://www.linkdex.com/bots/ |
| 9 | 1532 | 1.24 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 10 | 1000 | 0.81 | 484 | 1.99 | +http://www.google.com/bot.html |
| 11 | 500 | 0.40 | 2 | 0.01 | Linux i586 [unknown version] |
| 12 | 328 | 0.27 | 135 | 0.56 | +http://www.bing.com/bingbot.htm |
| 13 | 250 | 0.20 | 1 | 0.00 | Linux [unknown version] |
| 14 | 139 | 0.11 | 39 | 0.16 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 70 | 0.06 | 7 | 0.03 | http://www.searchmetrics.com/en/searchme... |
| 16 | 68 | 0.06 | 4 | 0.02 | +http://www.semrush.com/bot.html |
| 17 | 54 | 0.04 | 2 | 0.01 | +http://sur.ly/bot.html |
| 18 | 46 | 0.04 | 17 | 0.07 | +http://www.exabot.com/go/robot |
| 19 | 37 | 0.03 | 6 | 0.02 | +http://siteexplorer.info/Backlink-Check... |
| 20 | 14 | 0.01 | 7 | 0.03 | +http://cs.daum.net/faq/15/4118.html?faq... |
| 21 | 12 | 0.01 | 11 | 0.05 | +info@netcraft.com |
| 22 | 10 | 0.01 | 1 | 0.00 | +http://seocharger.com/robot |
| 23 | 10 | 0.01 | 9 | 0.04 | +http://www.uptime.com/uptimebot |
| 24 | 8 | 0.01 | 4 | 0.02 | Windows 98 |
| 25 | 7 | 0.01 | 7 | 0.03 | actually this is http://ismyblogworking.... |
| 26 | 6 | 0.00 | 6 | 0.02 | Windows 95 |
| 27 | 5 | 0.00 | 1 | 0.00 | WinHttp.WinHttpRequest.5 |
| 28 | 1 | 0.00 | 1 | 0.00 | MSIE 5.5; Windows NT 4.0 |
| 29 | 1 | 0.00 | 1 | 0.00 | ) - BrowseX (2.0.0 Windows |
