| Used Operating Systems |
| 1 | 28682 | 43.03 | 516 | 6.48 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 14939 | 22.41 | 3 | 0.04 | +http://megaindex.com/crawler |
| 3 | 7170 | 10.76 | 665 | 8.35 | Windows NT |
| 4 | 5862 | 8.79 | 3779 | 47.45 | +http://ahrefs.com/robot/ |
| 5 | 2843 | 4.27 | 1999 | 25.10 | +http://www.baidu.com/search/spider.html |
| 6 | 2310 | 3.47 | 9 | 0.11 | +http://www.warebay.com/bot.html |
| 7 | 1432 | 2.15 | 93 | 1.17 | +http://www.semrush.com/bot.html |
| 8 | 890 | 1.34 | 5 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 9 | 830 | 1.25 | 381 | 4.78 | +http://www.google.com/bot.html |
| 10 | 315 | 0.47 | 98 | 1.23 | +http://www.linkdex.com/bots/ |
| 11 | 306 | 0.46 | 91 | 1.14 | +http://yandex.com/bots |
| 12 | 254 | 0.38 | 72 | 0.90 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 202 | 0.30 | 69 | 0.87 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 117 | 0.18 | 23 | 0.29 | +http://www.bing.com/bingbot.htm |
| 15 | 97 | 0.15 | 16 | 0.20 | Windows 95 |
| 16 | 89 | 0.13 | 67 | 0.84 | +http://www.uptime.com/uptimebot |
| 17 | 73 | 0.11 | 9 | 0.11 | Windows CE |
| 18 | 64 | 0.10 | 21 | 0.26 | +http://www.exabot.com/go/robot |
| 19 | 36 | 0.05 | 4 | 0.05 | Windows 3.1 |
| 20 | 27 | 0.04 | 11 | 0.14 | Windows XP |
| 21 | 24 | 0.04 | 2 | 0.03 | +https://www.lipperhey.com/en/about/ |
| 22 | 21 | 0.03 | 2 | 0.03 | http://www.opensiteexplorer.org/dotbot, ... |
| 23 | 21 | 0.03 | 9 | 0.11 | Windows 98 |
| 24 | 16 | 0.02 | 2 | 0.03 | +http://www.linkpad.ru |
| 25 | 6 | 0.01 | 2 | 0.03 | +http://www.privacyaware.org |
| 26 | 4 | 0.01 | 4 | 0.05 | Auto; Windows |
| 27 | 4 | 0.01 | 3 | 0.04 | Windows ME |
| 28 | 4 | 0.01 | 0 | 0.00 | +https://www.mojeek.com/bot.html |
| 29 | 4 | 0.01 | 0 | 0.00 | Windows 9x |
| 30 | 4 | 0.01 | 2 | 0.03 | +http://siteexplorer.info/ |
| 31 | 2 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 32 | 2 | 0.00 | 2 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 33 | 2 | 0.00 | 2 | 0.03 | +info@netcraft.com |
| 34 | 2 | 0.00 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 35 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
