Whts the Purpose of 301 Redirect? and why we can use 301 redirect... Read http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=93633 and then http://example.com). You should always choose just 1 (I reccomend www) and then 301 the non www pages.
Link to google's explanation above is also very informative. 301 redirect is used for many purposes and is a very important element for webmasters.
301 redirects can help fight against duplicate content/pages problem.
301 redirect is used if you change the URL structure of your site.
301 redirect is used is you move your site to a new domain.
And there are many other uses of 301 redirects. 301 redirect is permanent redirect of pages. It is good for search engines Good to know that. I will now redirect the "http://" to "http://www." for my domain. Good idea. www. always looks more professional. 301 redirect is one of the best php code i ever used 301 Redirection is Permanent Redirection.
For More Info Check this Link : en.wikipedia.org/wiki/301_redirect#HTTP_status_codes_3xx
Link to google's explanation above is also very informative. 301 redirect is used for many purposes and is a very important element for webmasters.
301 redirects can help fight against duplicate content/pages problem.
301 redirect is used if you change the URL structure of your site.
301 redirect is used is you move your site to a new domain.
And there are many other uses of 301 redirects. 301 redirect is permanent redirect of pages. It is good for search engines Good to know that. I will now redirect the "http://" to "http://www." for my domain. Good idea. www. always looks more professional. 301 redirect is one of the best php code i ever used 301 Redirection is Permanent Redirection.
For More Info Check this Link : en.wikipedia.org/wiki/301_redirect#HTTP_status_codes_3xx