| Used Operating Systems |
| 1 | 19175 | 34.89 | 547 | 4.73 | +http://yandex.com/bots |
| 2 | 10279 | 18.70 | 5478 | 47.33 | +http://ahrefs.com/robot/ |
| 3 | 9200 | 16.74 | 148 | 1.28 | http://mj12bot.com/ |
| 4 | 4034 | 7.34 | 1510 | 13.05 | Windows NT |
| 5 | 2624 | 4.77 | 2129 | 18.39 | +http://www.baidu.com/search/spider.html |
| 6 | 2537 | 4.62 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 1681 | 3.06 | 536 | 4.63 | +http://www.google.com/bot.html |
| 8 | 1311 | 2.39 | 236 | 2.04 | +http://www.bing.com/bingbot.htm |
| 9 | 1127 | 2.05 | 223 | 1.93 | +http://www.linkdex.com/bots/ |
| 10 | 1035 | 1.88 | 6 | 0.05 | +http://siteexplorer.info/Backlink-Check... |
| 11 | 622 | 1.13 | 127 | 1.10 | +http://napoveda.seznam.cz/en/seznambot-... |
| 12 | 206 | 0.37 | 151 | 1.30 | Windows 95 |
| 13 | 188 | 0.34 | 2 | 0.02 | +http://www.linkpad.ru |
| 14 | 145 | 0.26 | 62 | 0.54 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 143 | 0.26 | 49 | 0.42 | Windows 98 |
| 16 | 92 | 0.17 | 77 | 0.67 | +http://www.uptime.com/uptimebot |
| 17 | 90 | 0.16 | 40 | 0.35 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 18 | 75 | 0.14 | 5 | 0.04 | +http://www.semrush.com/bot.html |
| 19 | 40 | 0.07 | 29 | 0.25 | Windows ME |
| 20 | 38 | 0.07 | 28 | 0.24 | MSIE 5.5; Windows NT 5.0 |
| 21 | 36 | 0.07 | 18 | 0.16 | +http://duckduckgo.com |
| 22 | 35 | 0.06 | 30 | 0.26 | Windows CE |
| 23 | 30 | 0.05 | 23 | 0.20 | MSIE 5.5; Windows NT 4.0 |
| 24 | 29 | 0.05 | 21 | 0.18 | Auto; Windows |
| 25 | 28 | 0.05 | 22 | 0.19 | ) - BrowseX (2.0.0 Windows |
| 26 | 27 | 0.05 | 23 | 0.20 | Windows 3.1 |
| 27 | 23 | 0.04 | 10 | 0.09 | Windows XP |
| 28 | 20 | 0.04 | 2 | 0.02 | +http://seocharger.com/robot |
| 29 | 20 | 0.04 | 0 | 0.00 | +http://www.xovibot.net/ |
| 30 | 17 | 0.03 | 15 | 0.13 | Windows 2000 |
| 31 | 13 | 0.02 | 6 | 0.05 | +http://cs.daum.net/faq/15/4118.html?faq... |
| 32 | 8 | 0.01 | 2 | 0.02 | +http://www.profound.net/domainappender |
| 33 | 7 | 0.01 | 5 | 0.04 | +http://sur.ly/bot.html |
| 34 | 6 | 0.01 | 3 | 0.03 | +http://www.exabot.com/go/robot |
| 35 | 4 | 0.01 | 1 | 0.01 | +http://www.warebay.com/bot.html |
| 36 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 37 | 2 | 0.00 | 2 | 0.02 | X11 |
| 38 | 2 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 39 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 40 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 41 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 42 | 1 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
