| Used Operating Systems |
| 1 | 2200 | 39.07 | 1987 | 54.47 | +http://www.baidu.com/search/spider.html |
| 2 | 1502 | 26.67 | 1216 | 33.33 | Windows NT |
| 3 | 867 | 15.40 | 57 | 1.56 | +http://yandex.com/bots |
| 4 | 575 | 10.21 | 276 | 7.57 | +http://www.bing.com/bingbot.htm |
| 5 | 225 | 4.00 | 53 | 1.45 | +http://www.google.com/bot.html |
| 6 | 60 | 1.07 | 4 | 0.11 | +http://endb-consolidated.aihit.com/ |
| 7 | 39 | 0.69 | 8 | 0.22 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 28 | 0.50 | 13 | 0.36 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 28 | 0.50 | 13 | 0.36 | help@moz.com |
| 10 | 26 | 0.46 | 2 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 11 | 24 | 0.43 | 7 | 0.19 | http://www.majestic12.co.uk/bot.php?+ |
| 12 | 11 | 0.20 | 0 | 0.00 | Macintosh PPC |
| 13 | 10 | 0.18 | 0 | 0.00 | Linux [unknown version] |
| 14 | 8 | 0.14 | 2 | 0.05 | Windows 98 |
| 15 | 6 | 0.11 | 0 | 0.00 | Win32 |
| 16 | 4 | 0.07 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 17 | 4 | 0.07 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 18 | 4 | 0.07 | 3 | 0.08 | Linux i686 [unknown version] |
| 19 | 3 | 0.05 | 2 | 0.05 | +info@netcraft.com |
| 20 | 2 | 0.04 | 2 | 0.05 | OpenBSD [unknown version] |
| 21 | 2 | 0.04 | 1 | 0.03 | +http://www.yunyun.com/spider.html |
| 22 | 2 | 0.04 | 1 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 1 | 0.02 | 1 | 0.03 | Windows CE |
