| Used Operating Systems |
| 1 | 2571 | 34.09 | 2098 | 65.50 | +http://www.baidu.com/search/spider.html |
| 2 | 1981 | 26.27 | 368 | 11.49 | +http://www.bing.com/bingbot.htm |
| 3 | 685 | 9.08 | 64 | 2.00 | +http://yandex.com/bots |
| 4 | 580 | 7.69 | 338 | 10.55 | +http://www.google.com/bot.html |
| 5 | 430 | 5.70 | 49 | 1.53 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 6 | 403 | 5.34 | 104 | 3.25 | Windows NT |
| 7 | 287 | 3.81 | 39 | 1.22 | +http://www.semrush.com/bot.html |
| 8 | 179 | 2.37 | 69 | 2.15 | +http://ahrefs.com/robot/ |
| 9 | 118 | 1.56 | 25 | 0.78 | http://mj12bot.com/ |
| 10 | 66 | 0.88 | 2 | 0.06 | Linux i686 [unknown version] |
| 11 | 45 | 0.60 | 5 | 0.16 | +http://www.seokicks.de/robot.html |
| 12 | 36 | 0.48 | 1 | 0.03 | +http://www.warebay.com/bot.html |
| 13 | 33 | 0.44 | 8 | 0.25 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 23 | 0.30 | 5 | 0.16 | http://www.majestic12.co.uk/bot.php?+ |
| 15 | 20 | 0.27 | 2 | 0.06 | http://filterdb.iss.net/crawler/ |
| 16 | 19 | 0.25 | 1 | 0.03 | +http://www.similartech.com/smtbot |
| 17 | 18 | 0.24 | 6 | 0.19 | +http://www.exabot.com/go/robot |
| 18 | 14 | 0.19 | 4 | 0.12 | http://nmap.org/book/nse.html |
| 19 | 10 | 0.13 | 5 | 0.16 | Wayback Machine Live Record; +http://arc... |
| 20 | 10 | 0.13 | 2 | 0.06 | +http://www.linkdex.com/bots/ |
| 21 | 6 | 0.08 | 1 | 0.03 | +http://www.profound.net/domainappender |
| 22 | 3 | 0.04 | 2 | 0.06 | +info@netcraft.com |
| 23 | 2 | 0.03 | 2 | 0.06 | +http://www.grapeshot.co.uk/crawler.php |
| 24 | 2 | 0.03 | 2 | 0.06 | X11 |
| 25 | 1 | 0.01 | 1 | 0.03 | http://www.similartech.com/smtbot |
