| Used Operating Systems |
| 1 | 18971 | 40.90 | 145 | 1.90 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 12078 | 26.04 | 4050 | 53.06 | +http://ahrefs.com/robot/ |
| 3 | 4687 | 10.11 | 1512 | 19.81 | Windows NT |
| 4 | 3326 | 7.17 | 1 | 0.01 | +http://megaindex.com/crawler |
| 5 | 2169 | 4.68 | 57 | 0.75 | +http://yandex.com/bots |
| 6 | 1610 | 3.47 | 452 | 5.92 | +http://www.google.com/bot.html |
| 7 | 1479 | 3.19 | 766 | 10.04 | +http://www.baidu.com/search/spider.html |
| 8 | 999 | 2.15 | 151 | 1.98 | +http://www.linkdex.com/bots/ |
| 9 | 291 | 0.63 | 140 | 1.83 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 272 | 0.59 | 22 | 0.29 | Linux [unknown version] |
| 11 | 102 | 0.22 | 41 | 0.54 | +http://www.bing.com/bingbot.htm |
| 12 | 81 | 0.17 | 61 | 0.80 | Windows 95 |
| 13 | 67 | 0.14 | 40 | 0.52 | Windows 98 |
| 14 | 37 | 0.08 | 36 | 0.47 | Linux i686 [unknown version] |
| 15 | 30 | 0.06 | 16 | 0.21 | +http://www.semrush.com/bot.html |
| 16 | 24 | 0.05 | 17 | 0.22 | Windows ME |
| 17 | 22 | 0.05 | 20 | 0.26 | X11 |
| 18 | 21 | 0.05 | 19 | 0.25 | J2ME/MIDP |
| 19 | 18 | 0.04 | 10 | 0.13 | Windows XP |
| 20 | 13 | 0.03 | 13 | 0.17 | Windows 2000 |
| 21 | 13 | 0.03 | 11 | 0.14 | Windows CE |
| 22 | 13 | 0.03 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 23 | 13 | 0.03 | 11 | 0.14 | MSIE 5.5; Windows NT 4.0 |
| 24 | 12 | 0.03 | 10 | 0.13 | Windows 3.1 |
| 25 | 11 | 0.02 | 11 | 0.14 | Auto; Windows |
| 26 | 11 | 0.02 | 10 | 0.13 | MSIE 5.5; Windows NT 5.0 |
| 27 | 9 | 0.02 | 9 | 0.12 | ) - BrowseX (2.0.0 Windows |
| 28 | 1 | 0.00 | 1 | 0.01 | +info@netcraft.com |
