If you are ever wondering why a particular URL does not load and looking to see a a miniscule network diagnostics your Chrome addressbar can lend a valuable helping hand. Just type about:net-internals and you should be in a wild shock with the page that loads.
Chrome brings with it a host of very powerful network diagnostics tool right in its address bar.
Related Tool: about:dns (which gives you information on DNS prefetching etc)
Source Courtesy: Wiki page on Chrome