| Used Operating Systems |
| 1 | 16422 | 29.70 | 8804 | 56.14 | +http://ahrefs.com/robot/ |
| 2 | 11552 | 20.89 | 93 | 0.59 | http://mj12bot.com/ |
| 3 | 8883 | 16.06 | 1039 | 6.63 | Windows NT |
| 4 | 5353 | 9.68 | 4237 | 27.02 | +http://www.baidu.com/search/spider.html |
| 5 | 4435 | 8.02 | 26 | 0.17 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 2371 | 4.29 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 7 | 1723 | 3.12 | 664 | 4.23 | +http://www.google.com/bot.html |
| 8 | 1350 | 2.44 | 6 | 0.04 | +http://siteexplorer.info/Backlink-Check... |
| 9 | 995 | 1.80 | 284 | 1.81 | +http://www.linkdex.com/bots/ |
| 10 | 767 | 1.39 | 123 | 0.78 | +http://yandex.com/bots |
| 11 | 504 | 0.91 | 123 | 0.78 | +http://www.bing.com/bingbot.htm |
| 12 | 302 | 0.55 | 109 | 0.70 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 250 | 0.45 | 1 | 0.01 | Linux [unknown version] |
| 14 | 107 | 0.19 | 11 | 0.07 | +http://www.semrush.com/bot.html |
| 15 | 39 | 0.07 | 26 | 0.17 | Windows 98 |
| 16 | 38 | 0.07 | 11 | 0.07 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 37 | 0.07 | 35 | 0.22 | Windows 95 |
| 18 | 28 | 0.05 | 2 | 0.01 | +http://sur.ly/bot.html |
| 19 | 21 | 0.04 | 8 | 0.05 | +http://www.exabot.com/go/robot |
| 20 | 20 | 0.04 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 21 | 12 | 0.02 | 5 | 0.03 | Windows XP |
| 22 | 11 | 0.02 | 9 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 23 | 10 | 0.02 | 7 | 0.04 | Windows 2000 |
| 24 | 10 | 0.02 | 9 | 0.06 | Auto; Windows |
| 25 | 10 | 0.02 | 1 | 0.01 | http://www.searchmetrics.com/en/searchme... |
| 26 | 9 | 0.02 | 8 | 0.05 | Windows 3.1 |
| 27 | 9 | 0.02 | 8 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 28 | 8 | 0.01 | 7 | 0.04 | +info@netcraft.com |
| 29 | 7 | 0.01 | 7 | 0.04 | ) - BrowseX (2.0.0 Windows |
| 30 | 5 | 0.01 | 5 | 0.03 | Windows CE |
| 31 | 3 | 0.01 | 3 | 0.02 | +http://8pw.ru/virus |
| 32 | 3 | 0.01 | 3 | 0.02 | Windows ME |
| 33 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 34 | 2 | 0.00 | 2 | 0.01 | actually this is http://ismyblogworking.... |
| 35 | 1 | 0.00 | 1 | 0.01 | +http://8pw.ru/ |
| 36 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
