| Used Operating Systems |
| 1 | 23403 | 42.07 | 233 | 2.21 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8600 | 15.46 | 4287 | 40.58 | +http://ahrefs.com/robot/ |
| 3 | 7017 | 12.61 | 638 | 6.04 | Windows NT |
| 4 | 6458 | 11.61 | 4015 | 38.00 | +http://www.baidu.com/search/spider.html |
| 5 | 3052 | 5.49 | 472 | 4.47 | +http://www.bing.com/bingbot.htm |
| 6 | 3003 | 5.40 | 3 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 1871 | 3.36 | 209 | 1.98 | +http://yandex.com/bots |
| 8 | 1419 | 2.55 | 510 | 4.83 | +http://www.google.com/bot.html |
| 9 | 247 | 0.44 | 1 | 0.01 | Linux i586 [unknown version] |
| 10 | 101 | 0.18 | 66 | 0.62 | +http://www.linkdex.com/bots/ |
| 11 | 86 | 0.15 | 16 | 0.15 | +spider@seoscanners.net |
| 12 | 76 | 0.14 | 25 | 0.24 | Windows 95 |
| 13 | 51 | 0.09 | 17 | 0.16 | Windows 98 |
| 14 | 43 | 0.08 | 6 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 15 | 35 | 0.06 | 12 | 0.11 | Windows CE |
| 16 | 33 | 0.06 | 6 | 0.06 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 30 | 0.05 | 5 | 0.05 | Windows XP |
| 18 | 20 | 0.04 | 2 | 0.02 | +http://siteexplorer.info/ |
| 19 | 18 | 0.03 | 8 | 0.08 | Windows 3.1 |
| 20 | 16 | 0.03 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 21 | 15 | 0.03 | 8 | 0.08 | Windows 2000 |
| 22 | 6 | 0.01 | 6 | 0.06 | Windows ME |
| 23 | 5 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 24 | 4 | 0.01 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 25 | 4 | 0.01 | 4 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 26 | 4 | 0.01 | 2 | 0.02 | Linux i686 [unknown version] |
| 27 | 4 | 0.01 | 3 | 0.03 | +info@netcraft.com |
| 28 | 4 | 0.01 | 4 | 0.04 | ) - BrowseX (2.0.0 Windows |
| 29 | 3 | 0.01 | 3 | 0.03 | Auto; Windows |
| 30 | 2 | 0.00 | 0 | 0.00 | +http://webmeup-crawler.com/ |
| 31 | 1 | 0.00 | 1 | 0.01 | +https://gimmeusa.com/crawler.html |
| 32 | 1 | 0.00 | 1 | 0.01 | +https://rankval.com |
| 33 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
