| Used Operating Systems |
| 1 | 3992 | 31.82 | 112 | 5.74 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2932 | 23.37 | 1006 | 51.54 | Windows NT |
| 3 | 2006 | 15.99 | 2 | 0.10 | http://crawler.007ac9.net/ |
| 4 | 1809 | 14.42 | 252 | 12.91 | +http://www.bing.com/bingbot.htm |
| 5 | 579 | 4.62 | 192 | 9.84 | +http://www.google.com/bot.html |
| 6 | 332 | 2.65 | 91 | 4.66 | +http://ahrefs.com/robot/ |
| 7 | 280 | 2.23 | 2 | 0.10 | +http://webmeup-crawler.com/ |
| 8 | 207 | 1.65 | 55 | 2.82 | +http://yandex.com/bots |
| 9 | 82 | 0.65 | 20 | 1.02 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 67 | 0.53 | 58 | 2.97 | Windows 95 |
| 11 | 54 | 0.43 | 20 | 1.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 28 | 0.22 | 12 | 0.61 | +http://www.exabot.com/go/robot |
| 13 | 22 | 0.18 | 11 | 0.56 | +http://www.meanpath.com/meanpathbot.htm... |
| 14 | 20 | 0.16 | 18 | 0.92 | MSIE 5.5; Windows NT 4.0 |
| 15 | 20 | 0.16 | 19 | 0.97 | Linux i586 [unknown version] |
| 16 | 18 | 0.14 | 16 | 0.82 | Windows 3.1 |
| 17 | 16 | 0.13 | 4 | 0.20 | Windows 98 |
| 18 | 15 | 0.12 | 1 | 0.05 | Windows XP |
| 19 | 15 | 0.12 | 14 | 0.72 | Linux i686 [unknown version] |
| 20 | 13 | 0.10 | 12 | 0.61 | MSIE 5.5; Windows NT 5.0 |
| 21 | 12 | 0.10 | 12 | 0.61 | Windows CE |
| 22 | 11 | 0.09 | 10 | 0.51 | Windows ME |
| 23 | 6 | 0.05 | 6 | 0.31 | Linux [unknown version] |
| 24 | 4 | 0.03 | 2 | 0.10 | X11 |
| 25 | 2 | 0.02 | 2 | 0.10 | Windows 2000 |
| 26 | 2 | 0.02 | 2 | 0.10 | +http://www.seograph.net/bot.html |
| 27 | 2 | 0.02 | 1 | 0.05 | +http://duckduckgo.com |
