| Used Operating Systems |
| 1 | 17033 | 51.59 | 414 | 5.46 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4696 | 14.22 | 2202 | 29.03 | Windows NT |
| 3 | 3549 | 10.75 | 3089 | 40.73 | +http://www.baidu.com/search/spider.html |
| 4 | 2645 | 8.01 | 145 | 1.91 | +http://yandex.com/bots |
| 5 | 2294 | 6.95 | 571 | 7.53 | +http://ahrefs.com/robot/ |
| 6 | 818 | 2.48 | 385 | 5.08 | +http://www.google.com/bot.html |
| 7 | 498 | 1.51 | 229 | 3.02 | +http://www.bing.com/bingbot.htm |
| 8 | 379 | 1.15 | 228 | 3.01 | +http://www.linkdex.com/bots/ |
| 9 | 326 | 0.99 | 107 | 1.41 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 170 | 0.51 | 33 | 0.44 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 60 | 0.18 | 12 | 0.16 | +http://www.profound.net/domainappender |
| 12 | 53 | 0.16 | 26 | 0.34 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 52 | 0.16 | 9 | 0.12 | +http://fulltext.sblog.cz/ |
| 14 | 44 | 0.13 | 4 | 0.05 | +http://advbot.net/bot.html |
| 15 | 38 | 0.12 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 16 | 30 | 0.09 | 3 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 17 | 26 | 0.08 | 5 | 0.07 | http://crawler.sistrix.net/ |
| 18 | 24 | 0.07 | 8 | 0.11 | +http://www.exabot.com/go/robot |
| 19 | 23 | 0.07 | 12 | 0.16 | Windows 95 |
| 20 | 22 | 0.07 | 14 | 0.18 | +http://www.semrush.com/bot.html |
| 21 | 21 | 0.06 | 6 | 0.08 | Windows 98 |
| 22 | 20 | 0.06 | 2 | 0.03 | +http://www.aihitdata.com/about |
| 23 | 18 | 0.05 | 8 | 0.11 | Windows ME |
| 24 | 18 | 0.05 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 25 | 16 | 0.05 | 8 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 26 | 16 | 0.05 | 6 | 0.08 | MSIE 5.5; Windows NT 4.0 |
| 27 | 14 | 0.04 | 6 | 0.08 | Windows 2000 |
| 28 | 14 | 0.04 | 6 | 0.08 | Windows CE |
| 29 | 14 | 0.04 | 3 | 0.04 | Windows XP |
| 30 | 12 | 0.04 | 6 | 0.08 | X11 |
| 31 | 10 | 0.03 | 5 | 0.07 | +http://duckduckgo.com |
| 32 | 8 | 0.02 | 4 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 33 | 7 | 0.02 | 2 | 0.03 | Linux [unknown version] |
| 34 | 6 | 0.02 | 2 | 0.03 | +http://getdownload.ws |
| 35 | 6 | 0.02 | 3 | 0.04 | +http://help.coccoc.com/ |
| 36 | 5 | 0.02 | 5 | 0.07 | +http://pmoz.info/doc/botinfo.htm |
| 37 | 4 | 0.01 | 3 | 0.04 | Intel Mac OS X 10.5 |
| 38 | 4 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 39 | 3 | 0.01 | 1 | 0.01 | Android 2.3.5 |
| 40 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 41 | 2 | 0.01 | 2 | 0.03 | OpenBSD [unknown version] |
| 42 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 43 | 2 | 0.01 | 2 | 0.03 | Windows 3.1 |
| 44 | 2 | 0.01 | 0 | 0.00 | +http://www.xovibot.net/ |
| 45 | 2 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 46 | 2 | 0.01 | 1 | 0.01 | +http://gimme60.com |
| 47 | 2 | 0.01 | 1 | 0.01 | +http://botw.org |
| 48 | 2 | 0.01 | 2 | 0.03 | +; |
| 49 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
