| Used Operating Systems by Visits |
| 1 | 74391 | 21.12 | 60671 | 72.45 | +http://ahrefs.com/robot/ |
| 2 | 31730 | 9.01 | 19348 | 23.10 | +http://www.baidu.com/search/spider.html |
| 3 | 48521 | 13.78 | 1077 | 1.29 | http://www.opensiteexplorer.org/dotbot, ... |
| 4 | 1745 | 0.50 | 835 | 1.00 | +http://www.google.com/bot.html |
| 5 | 110333 | 31.33 | 527 | 0.63 | http://mj12bot.com/ |
| 6 | 1177 | 0.33 | 338 | 0.40 | Windows NT |
| 7 | 73530 | 20.88 | 334 | 0.40 | +http://yandex.com/bots |
| 8 | 997 | 0.28 | 206 | 0.25 | +http://www.bing.com/bingbot.htm |
| 9 | 1439 | 0.41 | 192 | 0.23 | +http://www.linkdex.com/bots/ |
| 10 | 1524 | 0.43 | 64 | 0.08 | +http://www.semrush.com/bot.html |
| 11 | 78 | 0.02 | 26 | 0.03 | +http://www.profound.net/domainappender |
| 12 | 17 | 0.00 | 16 | 0.02 | +info@netcraft.com |
| 13 | 34 | 0.01 | 13 | 0.02 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 24 | 0.01 | 12 | 0.01 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 15 | 40 | 0.01 | 12 | 0.01 | +http://cs.daum.net/faq/15/4118.html?faq... |
| 16 | 11 | 0.00 | 11 | 0.01 | Windows 95 |
| 17 | 22 | 0.01 | 10 | 0.01 | Windows 98 |
| 18 | 18 | 0.01 | 8 | 0.01 | +http://www.exabot.com/go/robot |
| 19 | 6 | 0.00 | 6 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 20 | 5 | 0.00 | 5 | 0.01 | Windows 3.1 |
| 21 | 4 | 0.00 | 4 | 0.00 | Windows ME |
| 22 | 6 | 0.00 | 4 | 0.00 | +http://www.uptime.com/uptimebot |
| 23 | 3 | 0.00 | 3 | 0.00 | Windows CE |
| 24 | 8 | 0.00 | 3 | 0.00 | +http://www.findxbot.com |
| 25 | 3 | 0.00 | 3 | 0.00 | MSIE 5.5; Windows NT 4.0 |
| 26 | 2 | 0.00 | 2 | 0.00 | +http://sur.ly/bot.html |
| 27 | 8 | 0.00 | 2 | 0.00 | +http://www.seokicks.de/robot.html |
| 28 | 4 | 0.00 | 2 | 0.00 | +http://duckduckgo.com |
| 29 | 1 | 0.00 | 1 | 0.00 | Windows 2000 |
| 30 | 29 | 0.01 | 1 | 0.00 | +http://glutenfreepleasure.com/ |
| 31 | 1 | 0.00 | 1 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 32 | 10 | 0.00 | 1 | 0.00 | +http://seocharger.com/robot |
| 33 | 564 | 0.16 | 1 | 0.00 | +http://OpenLinkProfiler.org/bot |
| 34 | 5763 | 1.64 | 1 | 0.00 | +http://megaindex.com/crawler |
| 35 | 1 | 0.00 | 1 | 0.00 | +http://www.wmtips.com/tools/ |
| 36 | 6 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/Backlink-Check... |
| 37 | 2 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 38 | 5 | 0.00 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 39 | 149 | 0.04 | 0 | 0.00 | Linux i686 [unknown version] |
