| Used Operating Systems |
| 1 | 7398 | 65.19 | 1308 | 57.98 | Windows NT |
| 2 | 1171 | 10.32 | 375 | 16.62 | +http://www.google.com/bot.html |
| 3 | 918 | 8.09 | 178 | 7.89 | +http://www.baidu.com/search/spider.html |
| 4 | 670 | 5.90 | 120 | 5.32 | +http://www.bing.com/bingbot.htm |
| 5 | 254 | 2.24 | 19 | 0.84 | +http://fulltext.sblog.cz/ |
| 6 | 132 | 1.16 | 7 | 0.31 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 7 | 131 | 1.15 | 26 | 1.15 | +http://yandex.com/bots |
| 8 | 116 | 1.02 | 48 | 2.13 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 82 | 0.72 | 30 | 1.33 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 81 | 0.71 | 18 | 0.80 | Windows 98 |
| 11 | 70 | 0.62 | 23 | 1.02 | Windows 95 |
| 12 | 43 | 0.38 | 29 | 1.29 | +http://ahrefs.com/robot/ |
| 13 | 26 | 0.23 | 2 | 0.09 | +; |
| 14 | 24 | 0.21 | 2 | 0.09 | +http://webmeup-crawler.com/ |
| 15 | 24 | 0.21 | 8 | 0.35 | ) - BrowseX (2.0.0 Windows |
| 16 | 18 | 0.16 | 6 | 0.27 | Windows ME |
| 17 | 18 | 0.16 | 3 | 0.13 | MSIE 5.5; Windows NT 4.0 |
| 18 | 17 | 0.15 | 3 | 0.13 | MSIE 5.5; Windows NT 5.0 |
| 19 | 17 | 0.15 | 5 | 0.22 | http://www.majestic12.co.uk/bot.php?+ |
| 20 | 16 | 0.14 | 8 | 0.35 | +http://duckduckgo.com |
| 21 | 15 | 0.13 | 5 | 0.22 | Windows 2000 |
| 22 | 14 | 0.12 | 7 | 0.31 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 12 | 0.11 | 1 | 0.04 | http://www.lipperhey.com/ |
| 24 | 11 | 0.10 | 1 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 25 | 10 | 0.09 | 1 | 0.04 | +http://www.semrush.com/bot.html |
| 26 | 9 | 0.08 | 3 | 0.13 | Auto; Windows |
| 27 | 8 | 0.07 | 2 | 0.09 | +http://www.profound.net/domainappender |
| 28 | 8 | 0.07 | 0 | 0.00 | +http://advbot.org/bot.html |
| 29 | 6 | 0.05 | 2 | 0.09 | Windows XP |
| 30 | 6 | 0.05 | 2 | 0.09 | Windows 3.1 |
| 31 | 6 | 0.05 | 3 | 0.13 | +http://gimme60.com |
| 32 | 4 | 0.04 | 4 | 0.18 | Linux [unknown version] |
| 33 | 4 | 0.04 | 2 | 0.09 | WinHttp.WinHttpRequest.5 |
| 34 | 2 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 35 | 2 | 0.02 | 1 | 0.04 | +http://www.linkdex.com/bots/ |
| 36 | 2 | 0.02 | 2 | 0.09 | +http://www.grapeshot.co.uk/crawler.php |
| 37 | 1 | 0.01 | 1 | 0.04 | Windows CE |
| 38 | 1 | 0.01 | 1 | 0.04 | +info@netcraft.com |
| 39 | 1 | 0.01 | 0 | 0.00 | Linux i686 [unknown version] |
