YSlow: Avoid URL redirects
Avoid using URL redirects as they add additional delays to a page load.
How does your site score on this recommendation?
Details from Yahoo!
URL redirects are made using HTTP status codes 301 and 302. They tell the browser to go to another location.
Inserting a redirect between the user and the final HTML document delays everything on the page since nothing on the page can be rendered and no components can be downloaded until the HTML document arrives.