| Used Operating Systems |
| 1 | 19128 | 37.29 | 2385 | 41.38 | Windows NT |
| 2 | 6650 | 12.96 | 1416 | 24.57 | +http://www.bing.com/bingbot.htm |
| 3 | 5846 | 11.40 | 20 | 0.35 | Linux i686 [unknown version] |
| 4 | 3940 | 7.68 | 4 | 0.07 | crawler@goodzer.com |
| 5 | 2564 | 5.00 | 883 | 15.32 | +http://www.google.com/bot.html |
| 6 | 2530 | 4.93 | 7 | 0.12 | http://crawler.sistrix.net/ |
| 7 | 2353 | 4.59 | 229 | 3.97 | help@moz.com |
| 8 | 1588 | 3.10 | 62 | 1.08 | Windows 98 |
| 9 | 1542 | 3.01 | 22 | 0.38 | +http://OpenLinkProfiler.org/bot |
| 10 | 1336 | 2.60 | 211 | 3.66 | http://www.majestic12.co.uk/bot.php?+ |
| 11 | 1122 | 2.19 | 66 | 1.15 | +http://yandex.com/bots |
| 12 | 627 | 1.22 | 2 | 0.03 | +http://www.baidu.com/search/spider.html |
| 13 | 425 | 0.83 | 171 | 2.97 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 308 | 0.60 | 11 | 0.19 | +http://endb-consolidated.aihit.com/ |
| 15 | 262 | 0.51 | 0 | 0.00 | OS/2 |
| 16 | 222 | 0.43 | 93 | 1.61 | +http://www.exabot.com/go/robot |
| 17 | 98 | 0.19 | 5 | 0.09 | http://help.zum.com/inquiry |
| 18 | 98 | 0.19 | 2 | 0.03 | BREW |
| 19 | 72 | 0.14 | 21 | 0.36 | +http://fulltext.sblog.cz/ |
| 20 | 71 | 0.14 | 32 | 0.56 | Windows 95 |
| 21 | 60 | 0.12 | 2 | 0.03 | Windows 92 |
| 22 | 48 | 0.09 | 4 | 0.07 | +http://www.profound.net/urlappendbot.ht... |
| 23 | 42 | 0.08 | 18 | 0.31 | Windows ME |
| 24 | 41 | 0.08 | 3 | 0.05 | X11 |
| 25 | 39 | 0.08 | 9 | 0.16 | +http://filterdb.iss.net/crawler/ |
| 26 | 38 | 0.07 | 1 | 0.02 | Android |
| 27 | 33 | 0.06 | 1 | 0.02 | Windows 90 |
| 28 | 21 | 0.04 | 1 | 0.02 | Android 2.3.5 |
| 29 | 17 | 0.03 | 9 | 0.16 | Windows CE |
| 30 | 15 | 0.03 | 5 | 0.09 | Linux [unknown version] |
| 31 | 15 | 0.03 | 14 | 0.24 | +info@netcraft.com |
| 32 | 15 | 0.03 | 8 | 0.14 | +http://www.grapeshot.co.uk/crawler.php |
| 33 | 14 | 0.03 | 8 | 0.14 | Windows 2000 |
| 34 | 12 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 35 | 11 | 0.02 | 5 | 0.09 | Auto; Windows |
| 36 | 11 | 0.02 | 5 | 0.09 | +http://www.netseer.com/crawler.html; cr... |
| 37 | 9 | 0.02 | 0 | 0.00 | Macintosh PPC |
| 38 | 9 | 0.02 | 4 | 0.07 | +http://www.proximic.com/info/spider.php |
| 39 | 8 | 0.02 | 0 | 0.00 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 40 | 8 | 0.02 | 3 | 0.05 | Windows 3.1 |
| 41 | 7 | 0.01 | 7 | 0.12 | MSIE 5.5; Windows NT 5.0 |
| 42 | 7 | 0.01 | 7 | 0.12 | +http://www.loadtime.net/bot.html |
| 43 | 7 | 0.01 | 2 | 0.03 | +http://siteexplorer.info/ |
| 44 | 5 | 0.01 | 0 | 0.00 | Win32 |
| 45 | 5 | 0.01 | 0 | 0.00 | +http://www.easou.com/search/spider.html |
| 46 | 5 | 0.01 | 0 | 0.00 | +http://image2play.com/ |
| 47 | 5 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 48 | 4 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 49 | 3 | 0.01 | 3 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 50 | 2 | 0.00 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 51 | 1 | 0.00 | 1 | 0.02 | Intel Mac OS X 10.5 |
| 52 | 1 | 0.00 | 0 | 0.00 | MSIE 5.5; Windows 95 |
| 53 | 1 | 0.00 | 0 | 0.00 | Windows XP |
