| Used Operating Systems |
| 1 | 20824 | 41.42 | 269 | 2.41 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 11905 | 23.68 | 6609 | 59.22 | +http://ahrefs.com/robot/ |
| 3 | 3530 | 7.02 | 12 | 0.11 | +http://www.warebay.com/bot.html |
| 4 | 3431 | 6.82 | 389 | 3.49 | +http://www.bing.com/bingbot.htm |
| 5 | 3398 | 6.76 | 2502 | 22.42 | +http://www.baidu.com/search/spider.html |
| 6 | 2077 | 4.13 | 604 | 5.41 | Windows NT |
| 7 | 2005 | 3.99 | 110 | 0.99 | +http://www.semrush.com/bot.html |
| 8 | 1444 | 2.87 | 4 | 0.04 | +http://webmeup-crawler.com/ |
| 9 | 607 | 1.21 | 222 | 1.99 | +http://www.google.com/bot.html |
| 10 | 336 | 0.67 | 115 | 1.03 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 222 | 0.44 | 50 | 0.45 | +http://www.linkdex.com/bots/ |
| 12 | 190 | 0.38 | 104 | 0.93 | +http://yandex.com/bots |
| 13 | 126 | 0.25 | 89 | 0.80 | +http://www.uptime.com/uptimebot |
| 14 | 28 | 0.06 | 2 | 0.02 | +http://www.privacyaware.org |
| 15 | 25 | 0.05 | 18 | 0.16 | Windows 95 |
| 16 | 22 | 0.04 | 13 | 0.12 | Windows XP |
| 17 | 20 | 0.04 | 4 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 18 | 10 | 0.02 | 7 | 0.06 | Windows 98 |
| 19 | 8 | 0.02 | 4 | 0.04 | http://www.opensiteexplorer.org/dotbot, ... |
| 20 | 8 | 0.02 | 2 | 0.02 | http://crawler.007ac9.net/ |
| 21 | 6 | 0.01 | 2 | 0.02 | http://help.yahoo.com/help/us/ysearch/sl... |
| 22 | 6 | 0.01 | 2 | 0.02 | +https://www.aihitdata.com/about |
| 23 | 6 | 0.01 | 3 | 0.03 | +http://duckduckgo.com |
| 24 | 5 | 0.01 | 3 | 0.03 | Windows 3.1 |
| 25 | 4 | 0.01 | 2 | 0.02 | Linux [unknown version] |
| 26 | 4 | 0.01 | 3 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 27 | 4 | 0.01 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 28 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 29 | 2 | 0.00 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 30 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 31 | 2 | 0.00 | 2 | 0.02 | Linux i686 [unknown version] |
| 32 | 2 | 0.00 | 2 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 33 | 2 | 0.00 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 34 | 2 | 0.00 | 2 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 35 | 2 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 36 | 2 | 0.00 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 37 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
| 38 | 1 | 0.00 | 1 | 0.01 | Windows ME |
| 39 | 1 | 0.00 | 1 | 0.01 | X11 |
