| Used Operating Systems |
| 1 | 14923 | 36.85 | 87 | 2.75 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 9914 | 24.48 | 323 | 10.21 | +http://ahrefs.com/robot/ |
| 3 | 6610 | 16.32 | 2 | 0.06 | +http://megaindex.com/crawler |
| 4 | 4203 | 10.38 | 1026 | 32.44 | +http://www.baidu.com/search/spider.html |
| 5 | 1947 | 4.81 | 958 | 30.29 | Windows NT |
| 6 | 1673 | 4.13 | 220 | 6.96 | +http://www.linkdex.com/bots/ |
| 7 | 662 | 1.63 | 375 | 11.86 | +http://www.google.com/bot.html |
| 8 | 250 | 0.62 | 1 | 0.03 | Linux i586 [unknown version] |
| 9 | 84 | 0.21 | 21 | 0.66 | +http://yandex.com/bots |
| 10 | 78 | 0.19 | 32 | 1.01 | +http://www.bing.com/bingbot.htm |
| 11 | 33 | 0.08 | 26 | 0.82 | Windows 98 |
| 12 | 27 | 0.07 | 26 | 0.82 | Linux i686 [unknown version] |
| 13 | 20 | 0.05 | 17 | 0.54 | Linux [unknown version] |
| 14 | 15 | 0.04 | 14 | 0.44 | X11 |
| 15 | 12 | 0.03 | 12 | 0.38 | J2ME/MIDP |
| 16 | 10 | 0.02 | 5 | 0.16 | Windows 3.1 |
| 17 | 8 | 0.02 | 3 | 0.09 | http://help.yahoo.com/help/us/ysearch/sl... |
| 18 | 6 | 0.01 | 3 | 0.09 | Windows 95 |
| 19 | 4 | 0.01 | 4 | 0.13 | Unknown |
| 20 | 4 | 0.01 | 2 | 0.06 | Windows ME |
| 21 | 4 | 0.01 | 2 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 22 | 4 | 0.01 | 2 | 0.06 | +http://duckduckgo.com |
| 23 | 3 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 24 | 2 | 0.00 | 1 | 0.03 | Windows XP |
| 25 | 1 | 0.00 | 1 | 0.03 | +info@netcraft.com |
