| Used Operating Systems |
| 1 | 19098 | 44.31 | 303 | 2.53 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8524 | 19.78 | 5573 | 46.60 | +http://ahrefs.com/robot/ |
| 3 | 5343 | 12.40 | 3775 | 31.57 | +http://www.baidu.com/search/spider.html |
| 4 | 4387 | 10.18 | 527 | 4.41 | Windows NT |
| 5 | 2235 | 5.19 | 279 | 2.33 | +http://yandex.com/bots |
| 6 | 1051 | 2.44 | 482 | 4.03 | +http://www.google.com/bot.html |
| 7 | 850 | 1.97 | 305 | 2.55 | +http://www.bing.com/bingbot.htm |
| 8 | 487 | 1.13 | 341 | 2.85 | +http://www.xovibot.net/ |
| 9 | 458 | 1.06 | 140 | 1.17 | +http://www.linkdex.com/bots/ |
| 10 | 219 | 0.51 | 40 | 0.33 | +http://www.semrush.com/bot.html |
| 11 | 135 | 0.31 | 67 | 0.56 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 53 | 0.12 | 27 | 0.23 | Windows XP |
| 13 | 36 | 0.08 | 4 | 0.03 | +http://www.seokicks.de/robot.html |
| 14 | 33 | 0.08 | 17 | 0.14 | Windows 95 |
| 15 | 33 | 0.08 | 17 | 0.14 | Windows 98 |
| 16 | 22 | 0.05 | 11 | 0.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 17 | 20 | 0.05 | 7 | 0.06 | Windows ME |
| 18 | 18 | 0.04 | 2 | 0.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 19 | 14 | 0.03 | 7 | 0.06 | +http://duckduckgo.com |
| 20 | 12 | 0.03 | 4 | 0.03 | Auto; Windows |
| 21 | 12 | 0.03 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 22 | 10 | 0.02 | 5 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 23 | 6 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 24 | 6 | 0.01 | 2 | 0.02 | +https://www.dataprovider.com/ |
| 25 | 4 | 0.01 | 1 | 0.01 | +spider@seoscanners.net |
| 26 | 4 | 0.01 | 1 | 0.01 | +http://www.uptime.com/uptimebot |
| 27 | 4 | 0.01 | 0 | 0.00 | +http://webmeup-crawler.com/ |
| 28 | 4 | 0.01 | 3 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 29 | 4 | 0.01 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 30 | 3 | 0.01 | 3 | 0.03 | +http://sur.ly/bot.html |
| 31 | 3 | 0.01 | 2 | 0.02 | Windows 3.1 |
| 32 | 3 | 0.01 | 0 | 0.00 | +http://siteexplorer.info/ |
| 33 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 34 | 2 | 0.00 | 2 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 35 | 1 | 0.00 | 1 | 0.01 | Windows CE |
| 36 | 1 | 0.00 | 1 | 0.01 | Windows 2000 |
| 37 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
| 38 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 39 | 1 | 0.00 | 1 | 0.01 | +http://megaindex.com/crawler |
