| Used Operating Systems |
| 1 | 18367 | 41.39 | 5272 | 61.55 | Windows NT |
| 2 | 11633 | 26.21 | 181 | 2.11 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 3312 | 7.46 | 1143 | 13.35 | +http://www.baidu.com/search/spider.html |
| 4 | 2343 | 5.28 | 252 | 2.94 | +http://yandex.com/bots |
| 5 | 2006 | 4.52 | 2 | 0.02 | http://crawler.007ac9.net/ |
| 6 | 1912 | 4.31 | 545 | 6.36 | MSIE 5.5; Windows NT 5.0 |
| 7 | 1333 | 3.00 | 221 | 2.58 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 769 | 1.73 | 363 | 4.24 | +http://www.easou.com/search/spider.html |
| 9 | 737 | 1.66 | 271 | 3.16 | +http://www.google.com/bot.html |
| 10 | 706 | 1.59 | 3 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 11 | 583 | 1.31 | 152 | 1.77 | +http://www.linkdex.com/bots/ |
| 12 | 299 | 0.67 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 13 | 208 | 0.47 | 68 | 0.79 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 32 | 0.07 | 27 | 0.32 | Linux i686 [unknown version] |
| 15 | 29 | 0.07 | 11 | 0.13 | +http://www.bing.com/bingbot.htm |
| 16 | 19 | 0.04 | 13 | 0.15 | Windows 98 |
| 17 | 14 | 0.03 | 7 | 0.08 | Windows 95 |
| 18 | 12 | 0.03 | 6 | 0.07 | Windows ME |
| 19 | 11 | 0.02 | 9 | 0.11 | X11 |
| 20 | 10 | 0.02 | 5 | 0.06 | Windows CE |
| 21 | 7 | 0.02 | 4 | 0.05 | Windows 2000 |
| 22 | 7 | 0.02 | 6 | 0.07 | Linux [unknown version] |
| 23 | 6 | 0.01 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 24 | 6 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 25 | 6 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 5 | 0.01 | 1 | 0.01 | J2ME/MIDP |
| 27 | 4 | 0.01 | 2 | 0.02 | Windows 3.1 |
