| Used Operating Systems |
| 1 | 897 | 15.94 | 339 | 26.22 | Windows NT |
| 2 | 795 | 14.13 | 42 | 3.25 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 734 | 13.04 | 303 | 23.43 | +http://www.baidu.com/search/spider.html |
| 4 | 514 | 9.13 | 37 | 2.86 | +http://yandex.com/bots |
| 5 | 500 | 8.88 | 2 | 0.15 | +http://www.warebay.com/bot.html |
| 6 | 489 | 8.69 | 1 | 0.08 | http://www.nerdbynature.net/bot |
| 7 | 421 | 7.48 | 134 | 10.36 | +http://www.google.com/bot.html |
| 8 | 313 | 5.56 | 1 | 0.08 | http://crawler.sistrix.net/ |
| 9 | 300 | 5.33 | 299 | 23.12 | http://www.yodao.com/help/webmaster/spid... |
| 10 | 253 | 4.50 | 35 | 2.71 | +http://www.bing.com/bingbot.htm |
| 11 | 82 | 1.46 | 10 | 0.77 | ezooms.bot@gmail.com |
| 12 | 61 | 1.08 | 2 | 0.15 | +http://ahrefs.com/robot/ |
| 13 | 53 | 0.94 | 26 | 2.01 | Windows 95 |
| 14 | 45 | 0.80 | 8 | 0.62 | +http://www.exabot.com/go/robot |
| 15 | 42 | 0.75 | 14 | 1.08 | Windows 98 |
| 16 | 32 | 0.57 | 7 | 0.54 | MSIE 5.5; Windows NT 5.0 |
| 17 | 26 | 0.46 | 2 | 0.15 | Linux i686 [unknown version] |
| 18 | 10 | 0.18 | 1 | 0.08 | +http://www.aihit.com/ |
| 19 | 8 | 0.14 | 3 | 0.23 | Windows 3.1 |
| 20 | 8 | 0.14 | 2 | 0.15 | +http://domains.checkparams.com/ |
| 21 | 5 | 0.09 | 5 | 0.39 | Windows 2000 |
| 22 | 5 | 0.09 | 3 | 0.23 | Auto; Windows |
| 23 | 5 | 0.09 | 1 | 0.08 | +http://filterdb.iss.net/crawler/ |
| 24 | 5 | 0.09 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 25 | 4 | 0.07 | 2 | 0.15 | Windows CE |
| 26 | 4 | 0.07 | 4 | 0.31 | Windows ME |
| 27 | 4 | 0.07 | 2 | 0.15 | http://www.youdao.com/help/webmaster/spi... |
| 28 | 3 | 0.05 | 3 | 0.23 | ) - BrowseX (2.0.0 Windows |
| 29 | 3 | 0.05 | 1 | 0.08 | MSIE 5.5; Windows NT 4.0 |
| 30 | 2 | 0.04 | 2 | 0.15 | Windows XP |
| 31 | 2 | 0.04 | 2 | 0.15 | +info@netcraft.com |
| 32 | 2 | 0.04 | 0 | 0.00 | +http://www.seoprofiler.com/bot |
| 33 | 1 | 0.02 | 0 | 0.00 | AOL 9.0; Windows NT 5.1; .NET CLR 1.1.43... |
