| Used Operating Systems |
| 1 | 3242 | 30.72 | 1385 | 30.09 | Windows NT |
| 2 | 2322 | 22.01 | 2047 | 44.47 | +http://www.baidu.com/search/spider.html |
| 3 | 1356 | 12.85 | 312 | 6.78 | +http://www.bing.com/bingbot.htm |
| 4 | 636 | 6.03 | 141 | 3.06 | +http://yandex.com/bots |
| 5 | 550 | 5.21 | 141 | 3.06 | http://www.opensiteexplorer.org/dotbot, ... |
| 6 | 470 | 4.45 | 155 | 3.37 | +http://www.google.com/bot.html |
| 7 | 371 | 3.52 | 32 | 0.70 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 209 | 1.98 | 48 | 1.04 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 162 | 1.54 | 67 | 1.46 | +http://ahrefs.com/robot/ |
| 10 | 148 | 1.40 | 3 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 11 | 145 | 1.37 | 82 | 1.78 | +http://www.easou.com/search/spider.html |
| 12 | 138 | 1.31 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 13 | 129 | 1.22 | 53 | 1.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 97 | 0.92 | 14 | 0.30 | +http://fulltext.sblog.cz/ |
| 15 | 96 | 0.91 | 2 | 0.04 | +http://www.linkpad.ru |
| 16 | 69 | 0.65 | 5 | 0.11 | +http://siteexplorer.info/ |
| 17 | 67 | 0.63 | 5 | 0.11 | http://www.searchmetrics.com/en/searchme... |
| 18 | 43 | 0.41 | 12 | 0.26 | +http://www.exabot.com/go/robot |
| 19 | 38 | 0.36 | 19 | 0.41 | +http://www.career-x.de/bot.html |
| 20 | 36 | 0.34 | 12 | 0.26 | Windows 98 |
| 21 | 34 | 0.32 | 12 | 0.26 | Windows 95 |
| 22 | 34 | 0.32 | 2 | 0.04 | PPC Mac OS X Mach-O |
| 23 | 19 | 0.18 | 4 | 0.09 | Linux [unknown version] |
| 24 | 12 | 0.11 | 2 | 0.04 | http://www.lipperhey.com/ |
| 25 | 12 | 0.11 | 4 | 0.09 | +http://www.semrush.com/bot.html |
| 26 | 10 | 0.09 | 2 | 0.04 | +http://p4load.com/ |
| 27 | 10 | 0.09 | 2 | 0.04 | +http://www.profound.net/urlappendbot.ht... |
| 28 | 9 | 0.09 | 3 | 0.07 | ) - BrowseX (2.0.0 Windows |
| 29 | 8 | 0.08 | 4 | 0.09 | +http://gimme60.com |
| 30 | 8 | 0.08 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 31 | 7 | 0.07 | 6 | 0.13 | +info@netcraft.com |
| 32 | 6 | 0.06 | 2 | 0.04 | Auto; Windows |
| 33 | 6 | 0.06 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 34 | 6 | 0.06 | 2 | 0.04 | Windows XP |
| 35 | 6 | 0.06 | 2 | 0.04 | Windows 3.1 |
| 36 | 6 | 0.06 | 2 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 37 | 4 | 0.04 | 2 | 0.04 | http://crawler.sistrix.net/ |
| 38 | 4 | 0.04 | 2 | 0.04 | Windows ME |
| 39 | 4 | 0.04 | 2 | 0.04 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 40 | 4 | 0.04 | 2 | 0.04 | +http://zemlyaozer.com/bot |
| 41 | 4 | 0.04 | 1 | 0.02 | ScoutJet; +http://blekko.com/about/blekk... |
| 42 | 3 | 0.03 | 1 | 0.02 | Windows CE |
| 43 | 3 | 0.03 | 1 | 0.02 | +http://freedlf.com/ |
| 44 | 2 | 0.02 | 0 | 0.00 | Win32 |
| 45 | 2 | 0.02 | 2 | 0.04 | +http://136.186.231.16 |
| 46 | 2 | 0.02 | 2 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 47 | 2 | 0.02 | 2 | 0.04 | Linux i686 [unknown version] |
| 48 | 1 | 0.01 | 1 | 0.02 | +http://wmaid.com/explore/ |
