| Used Operating Systems |
| 1 | 9576 | 23.06 | 1095 | 9.20 | +http://ahrefs.com/robot/ |
| 2 | 7612 | 18.33 | 5681 | 47.72 | +http://www.baidu.com/search/spider.html |
| 3 | 7026 | 16.92 | 100 | 0.84 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 5530 | 13.32 | 970 | 8.15 | +http://www.google.com/bot.html |
| 5 | 3248 | 7.82 | 1672 | 14.04 | +http://www.bing.com/bingbot.htm |
| 6 | 3084 | 7.43 | 1306 | 10.97 | Windows NT |
| 7 | 1542 | 3.71 | 162 | 1.36 | ezooms.bot@gmail.com |
| 8 | 1245 | 3.00 | 363 | 3.05 | +http://yandex.com/bots |
| 9 | 675 | 1.63 | 93 | 0.78 | +http://shoulu.jike.com/spider.html |
| 10 | 471 | 1.13 | 76 | 0.64 | +http://www.exabot.com/go/robot |
| 11 | 469 | 1.13 | 6 | 0.05 | http://crawler.sistrix.net/ |
| 12 | 252 | 0.61 | 76 | 0.64 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 200 | 0.48 | 2 | 0.02 | http://www.lipperhey.com/ |
| 14 | 193 | 0.46 | 90 | 0.76 | Intel Mac OS X 10.4 |
| 15 | 119 | 0.29 | 64 | 0.54 | Linux i686 [unknown version] |
| 16 | 111 | 0.27 | 61 | 0.51 | +http://www.proximic.com/info/spider.php |
| 17 | 32 | 0.08 | 21 | 0.18 | +http://4seohunt.com/bot.html |
| 18 | 30 | 0.07 | 21 | 0.18 | Windows 98 |
| 19 | 22 | 0.05 | 11 | 0.09 | +http://www.netseer.com/crawler.html; cr... |
| 20 | 15 | 0.04 | 2 | 0.02 | Windows Phone OS 7.5 |
| 21 | 13 | 0.03 | 6 | 0.05 | +http://www.grapeshot.co.uk/crawler.php |
| 22 | 12 | 0.03 | 5 | 0.04 | crawler@unister.de |
| 23 | 12 | 0.03 | 6 | 0.05 | Windows 95 |
| 24 | 11 | 0.03 | 2 | 0.02 | +http://go.mail.ru/help/robots |
| 25 | 6 | 0.01 | 3 | 0.03 | Windows 2000 |
| 26 | 6 | 0.01 | 3 | 0.03 | Auto; Windows |
| 27 | 4 | 0.01 | 1 | 0.01 | PPC Mac OS X Mach-O |
| 28 | 4 | 0.01 | 2 | 0.02 | Windows 3.1 |
| 29 | 4 | 0.01 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 30 | 3 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 31 | 2 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 32 | 2 | 0.00 | 2 | 0.02 | X11 |
| 33 | 1 | 0.00 | 1 | 0.01 | Intel Mac OS X 10.6 |
