| Used Operating Systems |
| 1 | 18825 | 37.82 | 205 | 2.01 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 10895 | 21.89 | 5132 | 50.43 | +http://ahrefs.com/robot/ |
| 3 | 6483 | 13.03 | 529 | 5.20 | Windows NT |
| 4 | 5912 | 11.88 | 504 | 4.95 | +http://www.bing.com/bingbot.htm |
| 5 | 4566 | 9.17 | 2974 | 29.23 | +http://www.baidu.com/search/spider.html |
| 6 | 970 | 1.95 | 335 | 3.29 | +http://www.google.com/bot.html |
| 7 | 966 | 1.94 | 2 | 0.02 | +http://webmeup-crawler.com/ |
| 8 | 519 | 1.04 | 233 | 2.29 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 234 | 0.47 | 56 | 0.55 | +http://www.linkdex.com/bots/ |
| 10 | 108 | 0.22 | 68 | 0.67 | +http://yandex.com/bots |
| 11 | 69 | 0.14 | 56 | 0.55 | +http://www.uptime.com/uptimebot |
| 12 | 54 | 0.11 | 18 | 0.18 | +http://www.semrush.com/bot.html |
| 13 | 42 | 0.08 | 13 | 0.13 | Windows XP |
| 14 | 23 | 0.05 | 10 | 0.10 | Windows 95 |
| 15 | 20 | 0.04 | 4 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 16 | 16 | 0.03 | 5 | 0.05 | Windows 98 |
| 17 | 8 | 0.02 | 4 | 0.04 | Linux [unknown version] |
| 18 | 8 | 0.02 | 2 | 0.02 | Windows 3.1 |
| 19 | 5 | 0.01 | 3 | 0.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 20 | 5 | 0.01 | 3 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 21 | 4 | 0.01 | 0 | 0.00 | +http://www.domainoptima.com/robot |
| 22 | 4 | 0.01 | 2 | 0.02 | +http://crawler.seolytics.net/ |
| 23 | 4 | 0.01 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 24 | 4 | 0.01 | 2 | 0.02 | +http://duckduckgo.com |
| 25 | 3 | 0.01 | 1 | 0.01 | crawler@mixrank.com |
| 26 | 3 | 0.01 | 1 | 0.01 | Windows CE |
| 27 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 28 | 3 | 0.01 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 29 | 3 | 0.01 | 1 | 0.01 | +http://www.profound.net/domainappender |
| 30 | 2 | 0.00 | 0 | 0.00 | MSIE 5.5; Windows 98 |
| 31 | 2 | 0.00 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 32 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 33 | 2 | 0.00 | 2 | 0.02 | +http://www.domaintuno.com/robot |
| 34 | 1 | 0.00 | 1 | 0.01 | Windows 2000 |
| 35 | 1 | 0.00 | 1 | 0.01 | +https://gimmeusa.com/crawler.html |
| 36 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 37 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 5.0 |
