| Used Operating Systems |
| 1 | 13329 | 66.51 | 2868 | 54.08 | Windows NT |
| 2 | 1385 | 6.91 | 248 | 4.68 | +http://www.bing.com/bingbot.htm |
| 3 | 912 | 4.55 | 739 | 13.94 | +http://www.baidu.com/search/spider.html |
| 4 | 814 | 4.06 | 420 | 7.92 | +http://www.google.com/bot.html |
| 5 | 713 | 3.56 | 239 | 4.51 | +http://ahrefs.com/robot/ |
| 6 | 690 | 3.44 | 31 | 0.58 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 378 | 1.89 | 69 | 1.30 | +http://yandex.com/bots |
| 8 | 324 | 1.62 | 2 | 0.04 | http://crawler.007ac9.net/ |
| 9 | 250 | 1.25 | 188 | 3.55 | Windows 95 |
| 10 | 245 | 1.22 | 100 | 1.89 | +http://www.linkdex.com/bots/ |
| 11 | 144 | 0.72 | 47 | 0.89 | Windows 98 |
| 12 | 104 | 0.52 | 54 | 1.02 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 101 | 0.50 | 8 | 0.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 97 | 0.48 | 2 | 0.04 | +http://www.warebay.com/bot.html |
| 15 | 93 | 0.46 | 1 | 0.02 | +http://www.seokicks.de/robot.html |
| 16 | 50 | 0.25 | 1 | 0.02 | +http://advbot.org/bot.html |
| 17 | 46 | 0.23 | 32 | 0.60 | Windows 3.1 |
| 18 | 39 | 0.19 | 30 | 0.57 | Windows 2000 |
| 19 | 35 | 0.17 | 35 | 0.66 | MSIE 5.5; Windows NT 4.0 |
| 20 | 32 | 0.16 | 30 | 0.57 | ) - BrowseX (2.0.0 Windows |
| 21 | 30 | 0.15 | 4 | 0.08 | Windows XP |
| 22 | 29 | 0.14 | 27 | 0.51 | Windows ME |
| 23 | 27 | 0.13 | 27 | 0.51 | Windows CE |
| 24 | 27 | 0.13 | 19 | 0.36 | MSIE 5.5; Windows NT 5.0 |
| 25 | 26 | 0.13 | 25 | 0.47 | Auto; Windows |
| 26 | 24 | 0.12 | 5 | 0.09 | +http://www.exabot.com/go/robot |
| 27 | 16 | 0.08 | 15 | 0.28 | Linux i686 [unknown version] |
| 28 | 14 | 0.07 | 4 | 0.08 | http://www.opensiteexplorer.org/dotbot, ... |
| 29 | 14 | 0.07 | 7 | 0.13 | +http://www.meanpath.com/meanpathbot.htm... |
| 30 | 9 | 0.04 | 3 | 0.06 | +http://www.profound.net/domainappender |
| 31 | 7 | 0.03 | 2 | 0.04 | Linux [unknown version] |
| 32 | 6 | 0.03 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 33 | 6 | 0.03 | 1 | 0.02 | +info@netcraft.com |
| 34 | 6 | 0.03 | 6 | 0.11 | Linux i586 [unknown version] |
| 35 | 4 | 0.02 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 36 | 4 | 0.02 | 1 | 0.02 | +http://gimme60.com |
| 37 | 3 | 0.01 | 3 | 0.06 | +http://www.domaintuno.com/robot |
| 38 | 3 | 0.01 | 3 | 0.06 | +https://www.domaintuno.com/robot |
| 39 | 2 | 0.01 | 1 | 0.02 | +http://duckduckgo.com |
| 40 | 1 | 0.00 | 1 | 0.02 | Macintosh PPC |
| 41 | 1 | 0.00 | 0 | 0.00 | +http://glutenfreepleasure.com/ |
| 42 | 1 | 0.00 | 1 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 43 | 1 | 0.00 | 1 | 0.02 | +http://www.xovibot.net/ |
