| Used Operating Systems |
| 1 | 6763 | 29.61 | 183 | 3.91 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4939 | 21.62 | 1007 | 21.54 | Windows NT |
| 3 | 4725 | 20.69 | 2186 | 46.76 | +http://www.baidu.com/search/spider.html |
| 4 | 2784 | 12.19 | 661 | 14.14 | +http://www.google.com/bot.html |
| 5 | 1296 | 5.67 | 251 | 5.37 | +http://www.bing.com/bingbot.htm |
| 6 | 735 | 3.22 | 56 | 1.20 | +http://yandex.com/bots |
| 7 | 418 | 1.83 | 77 | 1.65 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 282 | 1.23 | 74 | 1.58 | +http://www.linkdex.com/bots/ |
| 9 | 256 | 1.12 | 44 | 0.94 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 146 | 0.64 | 14 | 0.30 | +http://ahrefs.com/robot/ |
| 11 | 125 | 0.55 | 4 | 0.09 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 108 | 0.47 | 31 | 0.66 | +http://www.exabot.com/go/robot |
| 13 | 31 | 0.14 | 2 | 0.04 | +http://filterdb.iss.net/crawler/ |
| 14 | 24 | 0.11 | 1 | 0.02 | WinHttp.WinHttpRequest.5 |
| 15 | 20 | 0.09 | 9 | 0.19 | +http://help.coccoc.com/ |
| 16 | 20 | 0.09 | 10 | 0.21 | +http://duckduckgo.com |
| 17 | 18 | 0.08 | 3 | 0.06 | +http://fulltext.sblog.cz/ |
| 18 | 17 | 0.07 | 13 | 0.28 | +http://pmoz.info/doc/botinfo.htm |
| 19 | 14 | 0.06 | 10 | 0.21 | http://crawler.sistrix.net/ |
| 20 | 14 | 0.06 | 7 | 0.15 | +http://www.meanpath.com/meanpathbot.htm... |
| 21 | 13 | 0.06 | 4 | 0.09 | +http://www.semrush.com/bot.html |
| 22 | 12 | 0.05 | 4 | 0.09 | http://www.lipperhey.com/ |
| 23 | 12 | 0.05 | 4 | 0.09 | +http://OpenLinkProfiler.org/bot |
| 24 | 9 | 0.04 | 3 | 0.06 | +http://advbot.net/bot.html |
| 25 | 8 | 0.04 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 26 | 8 | 0.04 | 2 | 0.04 | +https://www.mojeek.com/bot.html |
| 27 | 6 | 0.03 | 3 | 0.06 | +http://botw.org |
| 28 | 5 | 0.02 | 1 | 0.02 | +http://getdownload.ws |
| 29 | 5 | 0.02 | 2 | 0.04 | Linux [unknown version] |
| 30 | 5 | 0.02 | 2 | 0.04 | +info@netcraft.com |
| 31 | 4 | 0.02 | 0 | 0.00 | Windows 9. |
| 32 | 4 | 0.02 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 33 | 4 | 0.02 | 3 | 0.06 | X11 |
| 34 | 4 | 0.02 | 0 | 0.00 | Windows 98 |
| 35 | 3 | 0.01 | 1 | 0.02 | +http://www.profound.net/domainappender |
| 36 | 2 | 0.01 | 1 | 0.02 | +http://www.proximic.com/info/spider.php |
| 37 | 1 | 0.00 | 0 | 0.00 | Macintosh PPC |
| 38 | 1 | 0.00 | 0 | 0.00 | Windows 9 |
| 39 | 1 | 0.00 | 1 | 0.02 | +http://www.xovibot.net/ |
