| Used Operating Systems |
| 1 | 13385 | 43.06 | 186 | 1.97 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5597 | 18.01 | 3772 | 40.04 | +http://www.baidu.com/search/spider.html |
| 3 | 5028 | 16.18 | 3094 | 32.85 | +http://ahrefs.com/robot/ |
| 4 | 3755 | 12.08 | 1223 | 12.98 | Windows NT |
| 5 | 861 | 2.77 | 395 | 4.19 | +http://www.google.com/bot.html |
| 6 | 658 | 2.12 | 3 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 577 | 1.86 | 201 | 2.13 | +http://www.bing.com/bingbot.htm |
| 8 | 294 | 0.95 | 95 | 1.01 | +http://yandex.com/bots |
| 9 | 156 | 0.50 | 144 | 1.53 | +http://www.xovibot.net/ |
| 10 | 151 | 0.49 | 58 | 0.62 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 135 | 0.43 | 45 | 0.48 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 102 | 0.33 | 29 | 0.31 | Windows 98 |
| 13 | 96 | 0.31 | 62 | 0.66 | Windows 95 |
| 14 | 52 | 0.17 | 7 | 0.07 | +http://www.linkdex.com/bots/ |
| 15 | 35 | 0.11 | 17 | 0.18 | MSIE 5.5; Windows NT 5.0 |
| 16 | 30 | 0.10 | 8 | 0.08 | +http://www.exabot.com/go/robot |
| 17 | 24 | 0.08 | 2 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 18 | 19 | 0.06 | 14 | 0.15 | MSIE 5.5; Windows NT 4.0 |
| 19 | 16 | 0.05 | 1 | 0.01 | Windows XP |
| 20 | 16 | 0.05 | 8 | 0.08 | +http://www.meanpath.com/meanpathbot.htm... |
| 21 | 14 | 0.05 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 22 | 11 | 0.04 | 8 | 0.08 | Windows CE |
| 23 | 11 | 0.04 | 11 | 0.12 | ) - BrowseX (2.0.0 Windows |
| 24 | 10 | 0.03 | 0 | 0.00 | Linux [unknown version] |
| 25 | 9 | 0.03 | 8 | 0.08 | Windows 2000 |
| 26 | 8 | 0.03 | 7 | 0.07 | Auto; Windows |
| 27 | 8 | 0.03 | 8 | 0.08 | Windows ME |
| 28 | 7 | 0.02 | 5 | 0.05 | Windows 3.1 |
| 29 | 4 | 0.01 | 0 | 0.00 | +http://www.domainoptima.com/robot |
| 30 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 31 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 32 | 2 | 0.01 | 1 | 0.01 | http://www.botje.com/plukkie.htm |
| 33 | 2 | 0.01 | 2 | 0.02 | +http://www.domaintuno.com/robot |
| 34 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 35 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 36 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 37 | 1 | 0.00 | 1 | 0.01 | +http://www.uptime.com/uptimebot |
