| Used Operating Systems |
| 1 | 31387 | 66.69 | 232 | 3.77 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8360 | 17.76 | 3419 | 55.63 | Windows NT |
| 3 | 2006 | 4.26 | 2 | 0.03 | http://crawler.007ac9.net/ |
| 4 | 1318 | 2.80 | 1158 | 18.84 | +http://www.baidu.com/search/spider.html |
| 5 | 618 | 1.31 | 4 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 6 | 580 | 1.23 | 121 | 1.97 | +http://ahrefs.com/robot/ |
| 7 | 545 | 1.16 | 136 | 2.21 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 435 | 0.92 | 279 | 4.54 | Windows 95 |
| 9 | 382 | 0.81 | 173 | 2.81 | +http://www.bing.com/bingbot.htm |
| 10 | 251 | 0.53 | 40 | 0.65 | Windows 98 |
| 11 | 225 | 0.48 | 71 | 1.16 | +http://www.google.com/bot.html |
| 12 | 122 | 0.26 | 42 | 0.68 | +http://yandex.com/bots |
| 13 | 100 | 0.21 | 2 | 0.03 | +http://advbot.org/bot.html |
| 14 | 95 | 0.20 | 12 | 0.20 | Windows XP |
| 15 | 91 | 0.19 | 65 | 1.06 | MSIE 5.5; Windows NT 5.0 |
| 16 | 88 | 0.19 | 73 | 1.19 | Windows 2000 |
| 17 | 83 | 0.18 | 59 | 0.96 | Windows CE |
| 18 | 76 | 0.16 | 51 | 0.83 | Windows 3.1 |
| 19 | 66 | 0.14 | 45 | 0.73 | Windows ME |
| 20 | 64 | 0.14 | 55 | 0.89 | MSIE 5.5; Windows NT 4.0 |
| 21 | 43 | 0.09 | 33 | 0.54 | Auto; Windows |
| 22 | 43 | 0.09 | 33 | 0.54 | ) - BrowseX (2.0.0 Windows |
| 23 | 39 | 0.08 | 11 | 0.18 | +http://www.linkdex.com/bots/ |
| 24 | 22 | 0.05 | 11 | 0.18 | +http://www.meanpath.com/meanpathbot.htm... |
| 25 | 13 | 0.03 | 13 | 0.21 | Linux i686 [unknown version] |
| 26 | 4 | 0.01 | 2 | 0.03 | http://nmap.org/book/nse.html |
| 27 | 4 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 28 | 2 | 0.00 | 2 | 0.03 | Linux [unknown version] |
