| Used Operating Systems |
| 1 | 7685 | 53.88 | 91 | 6.45 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2478 | 17.37 | 241 | 17.09 | +http://www.bing.com/bingbot.htm |
| 3 | 818 | 5.74 | 33 | 2.34 | +http://www.semrush.com/bot.html |
| 4 | 805 | 5.64 | 41 | 2.91 | +http://yandex.com/bots |
| 5 | 802 | 5.62 | 575 | 40.78 | Windows NT |
| 6 | 555 | 3.89 | 127 | 9.01 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 257 | 1.80 | 63 | 4.47 | +http://www.linkdex.com/bots/ |
| 8 | 175 | 1.23 | 90 | 6.38 | +http://www.baidu.com/search/spider.html |
| 9 | 158 | 1.11 | 48 | 3.40 | +http://www.google.com/bot.html |
| 10 | 135 | 0.95 | 3 | 0.21 | +http://ahrefs.com/robot/ |
| 11 | 108 | 0.76 | 19 | 1.35 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 66 | 0.46 | 3 | 0.21 | +http://webmeup-crawler.com/ |
| 13 | 52 | 0.36 | 24 | 1.70 | +http://duckduckgo.com |
| 14 | 42 | 0.29 | 2 | 0.14 | +http://megaindex.com/crawler |
| 15 | 22 | 0.15 | 1 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 16 | 16 | 0.11 | 6 | 0.43 | http://www.opensiteexplorer.org/dotbot, ... |
| 17 | 15 | 0.11 | 12 | 0.85 | Windows 95 |
| 18 | 13 | 0.09 | 1 | 0.07 | +http://filterdb.iss.net/crawler/ |
| 19 | 12 | 0.08 | 1 | 0.07 | +https://www.lipperhey.com/en/about/ |
| 20 | 9 | 0.06 | 5 | 0.35 | Windows 98 |
| 21 | 9 | 0.06 | 5 | 0.35 | +http://www.exabot.com/go/robot |
| 22 | 6 | 0.04 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 23 | 3 | 0.02 | 3 | 0.21 | Windows 2000 |
| 24 | 3 | 0.02 | 0 | 0.00 | J2ME/MIDP |
| 25 | 3 | 0.02 | 3 | 0.21 | Auto; Windows |
| 26 | 3 | 0.02 | 3 | 0.21 | ) - BrowseX (2.0.0 Windows |
| 27 | 2 | 0.01 | 1 | 0.07 | Windows XP |
| 28 | 2 | 0.01 | 2 | 0.14 | Windows 3.1 |
| 29 | 2 | 0.01 | 1 | 0.07 | +http://www.findxbot.com |
| 30 | 1 | 0.01 | 1 | 0.07 | Windows CE |
| 31 | 1 | 0.01 | 1 | 0.07 | Linux 2.4.x |
| 32 | 1 | 0.01 | 1 | 0.07 | +http://www.privacyaware.org |
| 33 | 1 | 0.01 | 1 | 0.07 | Linux [unknown version] |
| 34 | 1 | 0.01 | 1 | 0.07 | X11 |
| 35 | 1 | 0.01 | 1 | 0.07 | Windows ME |
