title: URL Structure: Lower case VS Upper case
body: <p>Just trigger in my mind when I was going through some websites were they having upper case and lower case combination in url something like <code>http://www.domain.com/Home/Article</code></p>
  
  <p>Now as I know we should always use lowercase in url but have not idea about technical reason. I would like to learn from you expert to clear this concept why to use lowercase in url. What are the advantages and disadvantages for upper case url.</p>