3xx indicates that the client must take an additional action to compleate the request.
301 (moved permanently) - This and all future request should be directed to the given url.
302 ( found) - This is the most popular redirected code. Here the client has to perform a temperory redirection.(The original describing phase was moved temperorly.
303 ( other) - The response to the request can be found under another url.
307 ( temperory request) - The request should be repeated with another url, but future request can still use the original url., but the future request can still use the original url.
