| Used Operating Systems |
| 1 | 5388 | 34.45 | 380 | 7.40 | http://www.opensiteexplorer.org/dotbot, ... |
| 2 | 4447 | 28.44 | 2426 | 47.24 | Windows NT |
| 3 | 1771 | 11.32 | 1598 | 31.11 | +http://www.baidu.com/search/spider.html |
| 4 | 1751 | 11.20 | 96 | 1.87 | +http://www.easou.com/search/spider.html |
| 5 | 750 | 4.80 | 228 | 4.44 | +http://www.google.com/bot.html |
| 6 | 426 | 2.72 | 203 | 3.95 | +http://www.bing.com/bingbot.htm |
| 7 | 348 | 2.23 | 20 | 0.39 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 249 | 1.59 | 28 | 0.55 | +http://yandex.com/bots |
| 9 | 91 | 0.58 | 32 | 0.62 | +http://ahrefs.com/robot/ |
| 10 | 85 | 0.54 | 33 | 0.64 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 45 | 0.29 | 15 | 0.29 | Windows 95 |
| 12 | 27 | 0.17 | 3 | 0.06 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 22 | 0.14 | 1 | 0.02 | http://www.searchmetrics.com/en/searchme... |
| 14 | 20 | 0.13 | 4 | 0.08 | +http://www.exabot.com/go/robot |
| 15 | 20 | 0.13 | 8 | 0.16 | +http://fulltext.sblog.cz/ |
| 16 | 15 | 0.10 | 8 | 0.16 | +http://www.idmarch.org/bot.html |
| 17 | 15 | 0.10 | 1 | 0.02 | +http://endb-consolidated.aihit.com/ |
| 18 | 14 | 0.09 | 6 | 0.12 | Windows 2000 |
| 19 | 14 | 0.09 | 1 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 20 | 14 | 0.09 | 3 | 0.06 | Windows 98 |
| 21 | 12 | 0.08 | 6 | 0.12 | Windows 3.1 |
| 22 | 12 | 0.08 | 4 | 0.08 | ) - BrowseX (2.0.0 Windows |
| 23 | 11 | 0.07 | 3 | 0.06 | Windows XP |
| 24 | 10 | 0.06 | 1 | 0.02 | Android |
| 25 | 9 | 0.06 | 3 | 0.06 | Windows CE |
| 26 | 9 | 0.06 | 3 | 0.06 | Windows ME |
| 27 | 9 | 0.06 | 3 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 28 | 6 | 0.04 | 2 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 29 | 5 | 0.03 | 1 | 0.02 | +http://overx50.com |
| 30 | 5 | 0.03 | 0 | 0.00 | Linux [unknown version] |
| 31 | 5 | 0.03 | 1 | 0.02 | +http://siteexplorer.info/ |
| 32 | 4 | 0.03 | 1 | 0.02 | +http://uni5download.com |
| 33 | 4 | 0.03 | 2 | 0.04 | +http://wmaid.com/explore/ |
| 34 | 3 | 0.02 | 1 | 0.02 | +http://downloaflare.biz |
| 35 | 3 | 0.02 | 0 | 0.00 | MAUI Runtime |
| 36 | 3 | 0.02 | 1 | 0.02 | +http://inload.me |
| 37 | 3 | 0.02 | 1 | 0.02 | +http://mydownloadengine.com |
| 38 | 2 | 0.01 | 1 | 0.02 | http://crawler.sistrix.net/ |
| 39 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 40 | 2 | 0.01 | 2 | 0.04 | +http://www.xovibot.net/ |
| 41 | 2 | 0.01 | 1 | 0.02 | ScoutJet; +http://blekko.com/about/blekk... |
| 42 | 2 | 0.01 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 43 | 1 | 0.01 | 1 | 0.02 | +http://fb02itsscan.fh-muenster.de |
| 44 | 1 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 45 | 1 | 0.01 | 1 | 0.02 | Linux i586 [unknown version] |
| 46 | 1 | 0.01 | 1 | 0.02 | Android 2.3.5 |
