| Used Operating Systems |
| 1 | 2797 | 25.95 | 2458 | 46.45 | +http://www.baidu.com/search/spider.html |
| 2 | 2250 | 20.88 | 1193 | 22.54 | Windows NT |
| 3 | 1205 | 11.18 | 269 | 5.08 | +http://yandex.com/bots |
| 4 | 1073 | 9.96 | 253 | 4.78 | +http://www.bing.com/bingbot.htm |
| 5 | 977 | 9.07 | 307 | 5.80 | +http://www.google.com/bot.html |
| 6 | 739 | 6.86 | 188 | 3.55 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 276 | 2.56 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 8 | 260 | 2.41 | 167 | 3.16 | +http://ahrefs.com/robot/ |
| 9 | 227 | 2.11 | 110 | 2.08 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 189 | 1.75 | 11 | 0.21 | http://www.searchmetrics.com/en/searchme... |
| 11 | 184 | 1.71 | 142 | 2.68 | +http://www.easou.com/search/spider.html |
| 12 | 156 | 1.45 | 44 | 0.83 | http://www.majestic12.co.uk/bot.php?+ |
| 13 | 114 | 1.06 | 30 | 0.57 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 105 | 0.97 | 25 | 0.47 | +http://fulltext.sblog.cz/ |
| 15 | 70 | 0.65 | 32 | 0.60 | +http://www.exabot.com/go/robot |
| 16 | 36 | 0.33 | 18 | 0.34 | +http://www.career-x.de/bot.html |
| 17 | 24 | 0.22 | 5 | 0.09 | Linux [unknown version] |
| 18 | 12 | 0.11 | 4 | 0.08 | Windows 95 |
| 19 | 12 | 0.11 | 4 | 0.08 | ScoutJet; +http://blekko.com/about/blekk... |
| 20 | 10 | 0.09 | 5 | 0.09 | http://crawler.sistrix.net/ |
| 21 | 9 | 0.08 | 3 | 0.06 | +http://downloaflare.biz |
| 22 | 7 | 0.06 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 23 | 6 | 0.06 | 2 | 0.04 | Auto; Windows |
| 24 | 6 | 0.06 | 2 | 0.04 | +http://getdownload.ws |
| 25 | 6 | 0.06 | 2 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 26 | 5 | 0.05 | 3 | 0.06 | +info@netcraft.com |
| 27 | 4 | 0.04 | 2 | 0.04 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 28 | 4 | 0.04 | 2 | 0.04 | +http://www.xovibot.net/ |
| 29 | 3 | 0.03 | 3 | 0.06 | +http://wmaid.com/explore/ |
| 30 | 3 | 0.03 | 1 | 0.02 | http://crawler.007ac9.net/ |
| 31 | 3 | 0.03 | 1 | 0.02 | +http://overx50.com/ |
| 32 | 1 | 0.01 | 1 | 0.02 | +http://fb02itsscan.fh-muenster.de |
| 33 | 1 | 0.01 | 1 | 0.02 | Intel Mac OS X 10.4 |
| 34 | 1 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 35 | 1 | 0.01 | 1 | 0.02 | Windows 98 |
| 36 | 1 | 0.01 | 1 | 0.02 | Linux i686 [unknown version] |
