| Used Operating Systems |
| 1 | 19267 | 66.64 | 362 | 8.73 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2850 | 9.86 | 524 | 12.63 | Windows NT |
| 3 | 2732 | 9.45 | 2289 | 55.18 | +http://www.baidu.com/search/spider.html |
| 4 | 2293 | 7.93 | 280 | 6.75 | +http://yandex.com/bots |
| 5 | 506 | 1.75 | 203 | 4.89 | +http://www.google.com/bot.html |
| 6 | 456 | 1.58 | 129 | 3.11 | +http://www.linkdex.com/bots/ |
| 7 | 393 | 1.36 | 184 | 4.44 | +http://www.bing.com/bingbot.htm |
| 8 | 180 | 0.62 | 68 | 1.64 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 37 | 0.13 | 4 | 0.10 | +http://www.semrush.com/bot.html |
| 10 | 26 | 0.09 | 8 | 0.19 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 21 | 0.07 | 3 | 0.07 | http://filterdb.iss.net/crawler/ |
| 12 | 19 | 0.07 | 18 | 0.43 | Windows 95 |
| 13 | 18 | 0.06 | 7 | 0.17 | +http://www.exabot.com/go/robot |
| 14 | 14 | 0.05 | 7 | 0.17 | +http://napoveda.seznam.cz/en/seznambot-... |
| 15 | 12 | 0.04 | 4 | 0.10 | +http://OpenLinkProfiler.org/bot |
| 16 | 12 | 0.04 | 5 | 0.12 | Windows 98 |
| 17 | 8 | 0.03 | 8 | 0.19 | Windows CE |
| 18 | 8 | 0.03 | 2 | 0.05 | +http://www.warebay.com/bot.html |
| 19 | 8 | 0.03 | 2 | 0.05 | +http://ahrefs.com/robot/ |
| 20 | 7 | 0.02 | 6 | 0.14 | Windows XP |
| 21 | 6 | 0.02 | 6 | 0.14 | MSIE 5.5; Windows NT 4.0 |
| 22 | 6 | 0.02 | 2 | 0.05 | +https://www.dataprovider.com/ |
| 23 | 4 | 0.01 | 4 | 0.10 | Windows 2000 |
| 24 | 4 | 0.01 | 4 | 0.10 | Auto; Windows |
| 25 | 4 | 0.01 | 3 | 0.07 | Windows ME |
| 26 | 4 | 0.01 | 2 | 0.05 | +info@netcraft.com |
| 27 | 4 | 0.01 | 2 | 0.05 | +http://siteexplorer.info/ |
| 28 | 3 | 0.01 | 3 | 0.07 | Windows 3.1 |
| 29 | 3 | 0.01 | 3 | 0.07 | MSIE 5.5; Windows NT 5.0 |
| 30 | 3 | 0.01 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 31 | 2 | 0.01 | 2 | 0.05 | http://nmap.org/book/nse.html |
| 32 | 2 | 0.01 | 1 | 0.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 33 | 1 | 0.00 | 1 | 0.02 | Linux i586 [unknown version] |
| 34 | 1 | 0.00 | 1 | 0.02 | ) - BrowseX (2.0.0 Windows |
