Guys what are the types of url redirect such as 301 and 404 ..please explain these terms????
A 301 redirect means that the page has permanently moved to a new location. A 302 redirect means that the move is only temporary. Search engines need to figure out whether to keep the old page, or replace it with the one found at the new location.
There are two broad types of redirects:
Specified in the HTTP header response
Specified in the HTML output