| Used Operating Systems |
| 1 | 5954 | 51.11 | 2631 | 41.70 | Windows NT |
| 2 | 2177 | 18.69 | 1989 | 31.52 | +http://www.baidu.com/search/spider.html |
| 3 | 599 | 5.14 | 251 | 3.98 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 462 | 3.97 | 217 | 3.44 | +http://www.bing.com/bingbot.htm |
| 5 | 453 | 3.89 | 48 | 0.76 | +http://yandex.com/bots |
| 6 | 448 | 3.85 | 140 | 2.22 | +http://www.google.com/bot.html |
| 7 | 297 | 2.55 | 296 | 4.69 | http://www.yodao.com/help/webmaster/spid... |
| 8 | 270 | 2.32 | 201 | 3.19 | Windows 95 |
| 9 | 151 | 1.30 | 39 | 0.62 | Windows 98 |
| 10 | 147 | 1.26 | 90 | 1.43 | +http://ahrefs.com/robot/ |
| 11 | 75 | 0.64 | 55 | 0.87 | Windows ME |
| 12 | 75 | 0.64 | 61 | 0.97 | MSIE 5.5; Windows NT 5.0 |
| 13 | 58 | 0.50 | 14 | 0.22 | http://crawler.sistrix.net/ |
| 14 | 58 | 0.50 | 20 | 0.32 | +http://shoulu.jike.com/spider.html |
| 15 | 56 | 0.48 | 26 | 0.41 | ezooms.bot@gmail.com |
| 16 | 49 | 0.42 | 42 | 0.67 | Windows CE |
| 17 | 47 | 0.40 | 37 | 0.59 | Windows 3.1 |
| 18 | 46 | 0.39 | 40 | 0.63 | Windows 2000 |
| 19 | 42 | 0.36 | 36 | 0.57 | MSIE 5.5; Windows NT 4.0 |
| 20 | 36 | 0.31 | 18 | 0.29 | +http://www.career-x.de/bot.html |
| 21 | 33 | 0.28 | 8 | 0.13 | Windows XP |
| 22 | 24 | 0.21 | 10 | 0.16 | +http://www.exabot.com/go/robot |
| 23 | 15 | 0.13 | 8 | 0.13 | Auto; Windows |
| 24 | 14 | 0.12 | 5 | 0.08 | +http://go.mail.ru/help/robots |
| 25 | 14 | 0.12 | 6 | 0.10 | +http://www.seoprofiler.com/bot |
| 26 | 12 | 0.10 | 6 | 0.10 | Intel Mac OS X 10.4 |
| 27 | 8 | 0.07 | 1 | 0.02 | J2ME/MIDP |
| 28 | 8 | 0.07 | 2 | 0.03 | MirrorDetector; +http://yandex.com/bots |
| 29 | 8 | 0.07 | 5 | 0.08 | ) - BrowseX (2.0.0 Windows |
| 30 | 4 | 0.03 | 2 | 0.03 | crawler@unister.de |
| 31 | 3 | 0.03 | 1 | 0.02 | http://www.esrihu.hu/ |
| 32 | 3 | 0.03 | 1 | 0.02 | +info@netcraft.com |
| 33 | 3 | 0.03 | 3 | 0.05 | Linux i686 [unknown version] |
| 34 | 1 | 0.01 | 1 | 0.02 | Unknown |
