| Used Operating Systems |
| 1 | 4037 | 36.15 | 1223 | 30.18 | Windows NT |
| 2 | 1954 | 17.50 | 1794 | 44.27 | +http://www.baidu.com/search/spider.html |
| 3 | 1271 | 11.38 | 73 | 1.80 | +http://yandex.com/bots |
| 4 | 950 | 8.51 | 234 | 5.77 | +http://www.bing.com/bingbot.htm |
| 5 | 498 | 4.46 | 114 | 2.81 | +http://www.google.com/bot.html |
| 6 | 458 | 4.10 | 207 | 5.11 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 7 | 374 | 3.35 | 93 | 2.30 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 319 | 2.86 | 50 | 1.23 | http://www.majestic12.co.uk/bot.php?+ |
| 9 | 301 | 2.70 | 79 | 1.95 | help@moz.com |
| 10 | 226 | 2.02 | 31 | 0.77 | +http://SiteExplorer.Info/ |
| 11 | 178 | 1.59 | 26 | 0.64 | +http://fulltext.sblog.cz/ |
| 12 | 104 | 0.93 | 4 | 0.10 | Windows Phone OS 7.5 |
| 13 | 99 | 0.89 | 29 | 0.72 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 72 | 0.64 | 23 | 0.57 | +http://www.easou.com/search/spider.html |
| 15 | 64 | 0.57 | 4 | 0.10 | http://www.searchmetrics.com/en/searchme... |
| 16 | 56 | 0.50 | 9 | 0.22 | +http://siteexplorer.info/ |
| 17 | 45 | 0.40 | 15 | 0.37 | +http://www.exabot.com/go/robot |
| 18 | 28 | 0.25 | 14 | 0.35 | +http://www.career-x.de/bot.html |
| 19 | 21 | 0.19 | 6 | 0.15 | Windows 95 |
| 20 | 20 | 0.18 | 0 | 0.00 | Linux [unknown version] |
| 21 | 16 | 0.14 | 1 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 22 | 12 | 0.11 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 23 | 10 | 0.09 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 24 | 8 | 0.07 | 4 | 0.10 | Windows CE |
| 25 | 8 | 0.07 | 3 | 0.07 | Windows 98 |
| 26 | 6 | 0.05 | 2 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 27 | 6 | 0.05 | 2 | 0.05 | ScoutJet; +http://blekko.com/about/blekk... |
| 28 | 4 | 0.04 | 2 | 0.05 | http://crawler.sistrix.net/ |
| 29 | 4 | 0.04 | 2 | 0.05 | +http://www.yunyun.com/spider.html |
| 30 | 4 | 0.04 | 0 | 0.00 | Linux 2.4.x |
| 31 | 4 | 0.04 | 4 | 0.10 | Linux i686 [unknown version] |
| 32 | 4 | 0.04 | 3 | 0.07 | +info@netcraft.com |
| 33 | 3 | 0.03 | 0 | 0.00 | Win32 |
| 34 | 3 | 0.03 | 1 | 0.02 | Windows 3.1 |
