| Used Operating Systems |
| 1 | 17872 | 60.76 | 177 | 2.71 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4734 | 16.09 | 3328 | 50.90 | +http://www.baidu.com/search/spider.html |
| 3 | 3878 | 13.18 | 1855 | 28.37 | +http://ahrefs.com/robot/ |
| 4 | 733 | 2.49 | 3 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 5 | 731 | 2.49 | 371 | 5.67 | Windows NT |
| 6 | 574 | 1.95 | 317 | 4.85 | +http://www.google.com/bot.html |
| 7 | 363 | 1.23 | 257 | 3.93 | +http://www.bing.com/bingbot.htm |
| 8 | 248 | 0.84 | 99 | 1.51 | +http://yandex.com/bots |
| 9 | 212 | 0.72 | 92 | 1.41 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 28 | 0.10 | 9 | 0.14 | +http://www.exabot.com/go/robot |
| 11 | 16 | 0.05 | 8 | 0.12 | +http://www.linkdex.com/bots/ |
| 12 | 13 | 0.04 | 12 | 0.18 | +http://www.uptime.com/uptimebot |
| 13 | 3 | 0.01 | 2 | 0.03 | http://nmap.org/book/nse.html |
| 14 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 15 | 2 | 0.01 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 16 | 2 | 0.01 | 1 | 0.02 | +http://duckduckgo.com |
| 17 | 1 | 0.00 | 1 | 0.02 | Linux i686 [unknown version] |
| 18 | 1 | 0.00 | 1 | 0.02 | Windows XP |
| 19 | 1 | 0.00 | 1 | 0.02 | +http://www.privacyaware.org |
| 20 | 1 | 0.00 | 1 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 21 | 1 | 0.00 | 1 | 0.02 | Windows 98 |
