How To remove the http://www from the any given url in c# -

i need remove

http://www. or www. url. example

http://www.stackoverflow.com/questions/ask http://stackoverflow.com/questions/ask www.stackoverflow.com/questions/ask 

for above need stackoverflow.com/questions/ask

this really simple

var url = "http://www.stackoverflow.com/questions/ask"; url = url.replace("http://","").replace("www.","")