| Used Operating Systems |
| 1 | 20886 | 37.07 | 580 | 4.15 | +http://yandex.com/bots |
| 2 | 14238 | 25.27 | 10304 | 73.77 | +http://ahrefs.com/robot/ |
| 3 | 6503 | 11.54 | 1 | 0.01 | +http://megaindex.com/crawler |
| 4 | 5061 | 8.98 | 196 | 1.40 | http://mj12bot.com/ |
| 5 | 2612 | 4.64 | 1985 | 14.21 | +http://www.baidu.com/search/spider.html |
| 6 | 2482 | 4.41 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 968 | 1.72 | 201 | 1.44 | Windows NT |
| 8 | 783 | 1.39 | 39 | 0.28 | +http://www.bing.com/bingbot.htm |
| 9 | 744 | 1.32 | 230 | 1.65 | +http://www.google.com/bot.html |
| 10 | 540 | 0.96 | 137 | 0.98 | +http://napoveda.seznam.cz/en/seznambot-... |
| 11 | 499 | 0.89 | 6 | 0.04 | +http://siteexplorer.info/Backlink-Check... |
| 12 | 418 | 0.74 | 118 | 0.84 | +http://www.linkdex.com/bots/ |
| 13 | 191 | 0.34 | 50 | 0.36 | +http://www.semrush.com/bot.html |
| 14 | 149 | 0.26 | 18 | 0.13 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 94 | 0.17 | 32 | 0.23 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 28 | 0.05 | 13 | 0.09 | +http://www.exabot.com/go/robot |
| 17 | 27 | 0.05 | 7 | 0.05 | http://www.botje.com/plukkie.htm |
| 18 | 15 | 0.03 | 0 | 0.00 | +http://www.xovibot.net/ |
| 19 | 14 | 0.02 | 9 | 0.06 | Windows 95 |
| 20 | 13 | 0.02 | 5 | 0.04 | +http://www.uptime.com/uptimebot |
| 21 | 11 | 0.02 | 1 | 0.01 | crawler@mixrank.com |
| 22 | 11 | 0.02 | 5 | 0.04 | +http://cs.daum.net/faq/15/4118.html?faq... |
| 23 | 10 | 0.02 | 6 | 0.04 | +http://sur.ly/bot.html |
| 24 | 9 | 0.02 | 4 | 0.03 | Windows CE |
| 25 | 9 | 0.02 | 1 | 0.01 | +http://www.seokicks.de/robot.html |
| 26 | 6 | 0.01 | 1 | 0.01 | Windows 98 |
| 27 | 5 | 0.01 | 3 | 0.02 | Windows 2000 |
| 28 | 5 | 0.01 | 5 | 0.04 | +info@netcraft.com |
| 29 | 4 | 0.01 | 3 | 0.02 | Windows 3.1 |
| 30 | 2 | 0.00 | 1 | 0.01 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 31 | 2 | 0.00 | 0 | 0.00 | Windows XP |
| 32 | 2 | 0.00 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 33 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
