| Used Operating Systems |
| 1 | 11470 | 27.78 | 8504 | 57.75 | +http://ahrefs.com/robot/ |
| 2 | 10137 | 24.55 | 778 | 5.28 | Windows NT |
| 3 | 7952 | 19.26 | 89 | 0.60 | http://mj12bot.com/ |
| 4 | 5127 | 12.42 | 4355 | 29.58 | +http://www.baidu.com/search/spider.html |
| 5 | 2743 | 6.64 | 24 | 0.16 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 1552 | 3.76 | 315 | 2.14 | +http://www.google.com/bot.html |
| 7 | 827 | 2.00 | 191 | 1.30 | +http://yandex.com/bots |
| 8 | 484 | 1.17 | 193 | 1.31 | +http://www.bing.com/bingbot.htm |
| 9 | 482 | 1.17 | 159 | 1.08 | +http://www.linkdex.com/bots/ |
| 10 | 228 | 0.55 | 14 | 0.10 | +http://www.semrush.com/bot.html |
| 11 | 87 | 0.21 | 1 | 0.01 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 69 | 0.17 | 41 | 0.28 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 33 | 0.08 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 14 | 13 | 0.03 | 9 | 0.06 | Windows 98 |
| 15 | 12 | 0.03 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 16 | 10 | 0.02 | 10 | 0.07 | Windows 95 |
| 17 | 8 | 0.02 | 1 | 0.01 | +http://www.profound.net/domainappender |
| 18 | 8 | 0.02 | 4 | 0.03 | +http://duckduckgo.com |
| 19 | 6 | 0.01 | 4 | 0.03 | +http://sur.ly/bot.html |
| 20 | 6 | 0.01 | 3 | 0.02 | +http://siteexplorer.info/Backlink-Check... |
| 21 | 6 | 0.01 | 5 | 0.03 | Windows XP |
| 22 | 6 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 23 | 5 | 0.01 | 5 | 0.03 | Windows ME |
| 24 | 4 | 0.01 | 2 | 0.01 | +http://www.exabot.com/go/robot |
| 25 | 2 | 0.00 | 2 | 0.01 | Windows CE |
| 26 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 27 | 2 | 0.00 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 28 | 1 | 0.00 | 1 | 0.01 | PPC Mac OS X 10.4 |
| 29 | 1 | 0.00 | 0 | 0.00 | +http://glutenfreepleasure.com/ |
| 30 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
| 31 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 32 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 33 | 1 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 34 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 35 | 1 | 0.00 | 1 | 0.01 | Windows 3.1 |
