| Used Operating Systems |
| 1 | 27121 | 46.31 | 11305 | 85.50 | +http://ahrefs.com/robot/ |
| 2 | 18384 | 31.39 | 853 | 6.45 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 10702 | 18.27 | 190 | 1.44 | http://mj12bot.com/ |
| 4 | 647 | 1.10 | 196 | 1.48 | Windows NT |
| 5 | 599 | 1.02 | 253 | 1.91 | +http://www.bing.com/bingbot.htm |
| 6 | 322 | 0.55 | 80 | 0.61 | +http://yandex.com/bots |
| 7 | 307 | 0.52 | 88 | 0.67 | +http://www.linkdex.com/bots/ |
| 8 | 204 | 0.35 | 107 | 0.81 | +http://www.google.com/bot.html |
| 9 | 136 | 0.23 | 129 | 0.98 | +http://www.baidu.com/search/spider.html |
| 10 | 87 | 0.15 | 3 | 0.02 | +http://www.semrush.com/bot.html |
| 11 | 20 | 0.03 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 12 | 16 | 0.03 | 2 | 0.02 | +http://napoveda.seznam.cz/en/seznambot-... |
| 13 | 6 | 0.01 | 2 | 0.02 | +http://megaindex.com/crawler |
| 14 | 5 | 0.01 | 4 | 0.03 | +info@netcraft.com |
| 15 | 4 | 0.01 | 0 | 0.00 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 16 | 3 | 0.01 | 1 | 0.01 | Linux [unknown version] |
| 17 | 2 | 0.00 | 2 | 0.02 | Intel Mac OS X 10.4 |
| 18 | 2 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 19 | 1 | 0.00 | 1 | 0.01 | Windows 98 |
| 20 | 1 | 0.00 | 1 | 0.01 | +http://www.uptime.com/uptimebot |
