| Used Operating Systems |
| 1 | 8537 | 33.96 | 299 | 4.10 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 6843 | 27.22 | 2462 | 33.74 | Windows NT |
| 3 | 2652 | 10.55 | 2382 | 32.64 | +http://www.baidu.com/search/spider.html |
| 4 | 1696 | 6.75 | 417 | 5.71 | +http://ahrefs.com/robot/ |
| 5 | 1530 | 6.09 | 205 | 2.81 | +http://yandex.com/bots |
| 6 | 1430 | 5.69 | 575 | 7.88 | +http://www.google.com/bot.html |
| 7 | 615 | 2.45 | 165 | 2.26 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 461 | 1.83 | 223 | 3.06 | +http://www.bing.com/bingbot.htm |
| 9 | 337 | 1.34 | 136 | 1.86 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 304 | 1.21 | 226 | 3.10 | +http://www.linkdex.com/bots/ |
| 11 | 131 | 0.52 | 9 | 0.12 | +http://fulltext.sblog.cz/ |
| 12 | 92 | 0.37 | 39 | 0.53 | Windows 95 |
| 13 | 49 | 0.19 | 15 | 0.21 | Windows 98 |
| 14 | 48 | 0.19 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 15 | 46 | 0.18 | 23 | 0.32 | +http://www.meanpath.com/meanpathbot.htm... |
| 16 | 40 | 0.16 | 4 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 17 | 30 | 0.12 | 7 | 0.10 | +http://www.exabot.com/go/robot |
| 18 | 25 | 0.10 | 14 | 0.19 | http://help.yahoo.com/help/us/ysearch/sl... |
| 19 | 22 | 0.09 | 8 | 0.11 | Auto; Windows |
| 20 | 22 | 0.09 | 2 | 0.03 | http://crawler.007ac9.net/ |
| 21 | 21 | 0.08 | 7 | 0.10 | Windows ME |
| 22 | 18 | 0.07 | 2 | 0.03 | crawler@mixrank.com |
| 23 | 18 | 0.07 | 8 | 0.11 | MSIE 5.5; Windows NT 4.0 |
| 24 | 14 | 0.06 | 3 | 0.04 | X11 |
| 25 | 12 | 0.05 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 10 | 0.04 | 4 | 0.05 | Windows CE |
| 27 | 10 | 0.04 | 5 | 0.07 | +http://help.coccoc.com/ |
| 28 | 10 | 0.04 | 6 | 0.08 | Windows 3.1 |
| 29 | 10 | 0.04 | 1 | 0.01 | +http://endb-consolidated.aihit.com/ |
| 30 | 9 | 0.04 | 9 | 0.12 | +http://www.easou.com/search/spider.html |
| 31 | 8 | 0.03 | 2 | 0.03 | +http://mono.name |
| 32 | 8 | 0.03 | 2 | 0.03 | +http://plus5files.net |
| 33 | 7 | 0.03 | 1 | 0.01 | Android 2.3.5 |
| 34 | 6 | 0.02 | 6 | 0.08 | +http://pmoz.info/doc/botinfo.htm |
| 35 | 6 | 0.02 | 2 | 0.03 | Windows XP |
| 36 | 6 | 0.02 | 1 | 0.01 | Trident/6.0; Windows NT 5.1; Zango 2.9.3... |
| 37 | 6 | 0.02 | 5 | 0.07 | +http://www.semrush.com/bot.html |
| 38 | 5 | 0.02 | 3 | 0.04 | Windows 2000 |
| 39 | 4 | 0.02 | 1 | 0.01 | +http://uni5download.com |
| 40 | 4 | 0.02 | 1 | 0.01 | +http://getdownload.ws |
| 41 | 4 | 0.02 | 2 | 0.03 | http://crawler.sistrix.net/ |
| 42 | 4 | 0.02 | 1 | 0.01 | +http://galaxydownloads.co |
| 43 | 4 | 0.02 | 2 | 0.03 | +info@netcraft.com |
| 44 | 4 | 0.02 | 2 | 0.03 | +http://botw.org |
| 45 | 3 | 0.01 | 3 | 0.04 | +http://fb02itsscan.fh-muenster.de |
| 46 | 3 | 0.01 | 1 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 47 | 3 | 0.01 | 0 | 0.00 | Macintosh |
| 48 | 2 | 0.01 | 2 | 0.03 | Trident/6.0; Windows NT 6.0; Crazy Brows... |
| 49 | 2 | 0.01 | 2 | 0.03 | Trident/6.0; Windows 98; MyIE2 |
| 50 | 2 | 0.01 | 0 | 0.00 | +http://www.xovibot.net/ |
| 51 | 2 | 0.01 | 2 | 0.03 | +http://gimme60.com |
| 52 | 2 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 53 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 54 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
