| Used Operating Systems |
| 1 | 16563 | 33.54 | 572 | 7.64 | +http://www.semrush.com/bot.html |
| 2 | 14534 | 29.43 | 182 | 2.43 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 7935 | 16.07 | 478 | 6.39 | +http://yandex.com/bots |
| 4 | 4676 | 9.47 | 3856 | 51.51 | +http://www.baidu.com/search/spider.html |
| 5 | 1677 | 3.40 | 763 | 10.19 | Windows NT |
| 6 | 1200 | 2.43 | 516 | 6.89 | +http://www.google.com/bot.html |
| 7 | 1122 | 2.27 | 337 | 4.50 | +http://www.bing.com/bingbot.htm |
| 8 | 513 | 1.04 | 266 | 3.55 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 375 | 0.76 | 71 | 0.95 | +http://www.linkdex.com/bots/ |
| 10 | 368 | 0.75 | 225 | 3.01 | +http://www.xovibot.net/ |
| 11 | 143 | 0.29 | 51 | 0.68 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 58 | 0.12 | 10 | 0.13 | +spider@seoscanners.net |
| 13 | 39 | 0.08 | 37 | 0.49 | Windows 95 |
| 14 | 32 | 0.06 | 19 | 0.25 | +http://www.exabot.com/go/robot |
| 15 | 22 | 0.04 | 21 | 0.28 | Windows 98 |
| 16 | 18 | 0.04 | 9 | 0.12 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 14 | 0.03 | 9 | 0.12 | Windows XP |
| 18 | 10 | 0.02 | 9 | 0.12 | Auto; Windows |
| 19 | 9 | 0.02 | 8 | 0.11 | Windows CE |
| 20 | 9 | 0.02 | 9 | 0.12 | Windows 2000 |
| 21 | 9 | 0.02 | 1 | 0.01 | +http://www.seokicks.de/robot.html |
| 22 | 8 | 0.02 | 0 | 0.00 | Windows 92 |
| 23 | 8 | 0.02 | 8 | 0.11 | Windows ME |
| 24 | 6 | 0.01 | 6 | 0.08 | ) - BrowseX (2.0.0 Windows |
| 25 | 5 | 0.01 | 5 | 0.07 | Windows 3.1 |
| 26 | 5 | 0.01 | 5 | 0.07 | MSIE 5.5; Windows NT 4.0 |
| 27 | 4 | 0.01 | 4 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 28 | 4 | 0.01 | 0 | 0.00 | Linux i686 [unknown version] |
| 29 | 4 | 0.01 | 3 | 0.04 | +http://www.uptime.com/uptimebot |
| 30 | 4 | 0.01 | 3 | 0.04 | +http://www.grapeshot.co.uk/crawler.php |
| 31 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 32 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 33 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
