| Used Operating Systems |
| 1 | 19154 | 47.87 | 15222 | 84.59 | +http://ahrefs.com/robot/ |
| 2 | 7470 | 18.67 | 539 | 3.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 3351 | 8.38 | 1 | 0.01 | +http://megaindex.com/crawler |
| 4 | 3251 | 8.13 | 41 | 0.23 | http://mj12bot.com/ |
| 5 | 2224 | 5.56 | 5 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 6 | 1916 | 4.79 | 968 | 5.38 | Windows NT |
| 7 | 735 | 1.84 | 641 | 3.56 | +http://www.baidu.com/search/spider.html |
| 8 | 527 | 1.32 | 164 | 0.91 | +http://www.google.com/bot.html |
| 9 | 363 | 0.91 | 80 | 0.44 | +http://www.linkdex.com/bots/ |
| 10 | 350 | 0.87 | 187 | 1.04 | +http://www.bing.com/bingbot.htm |
| 11 | 250 | 0.62 | 1 | 0.01 | Linux i586 [unknown version] |
| 12 | 220 | 0.55 | 88 | 0.49 | +http://yandex.com/bots |
| 13 | 82 | 0.20 | 10 | 0.06 | +http://www.semrush.com/bot.html |
| 14 | 33 | 0.08 | 33 | 0.18 | +http://www.uptime.com/uptimebot |
| 15 | 31 | 0.08 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 16 | 16 | 0.04 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 17 | 16 | 0.04 | 5 | 0.03 | +http://www.exabot.com/go/robot |
| 18 | 13 | 0.03 | 6 | 0.03 | +http://sur.ly/bot.html |
| 19 | 5 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 20 | 2 | 0.00 | 2 | 0.01 | Windows 95 |
| 21 | 1 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
