When you buy a new domain on the Internet, your provider forwards it to your main domain by default. Because Google penalises the creation of twins on the Internet, it is important to integrate a search engine-compliant redirect. Sanjay Sauldie, specialist for internet marketing in B2B, shows you the right redirection.
Redirects play a very important role on the Internet. Normally, you will not notice any redirects in practice. After all, that is their purpose. Let's take a look at different types of redirects:
A 301 redirect: http://www.eimia.de redirects correctly to the subfolder of http://www.iroi.de in terms of search engine technology.
You will find a javascript redirect if you see the following information on some websites: "You are being redirected to page xy, or click here ...". This is the worst form of redirection because search engines don't like this and may not index anything.
How to test redirects
The only redirect that is truly search engine compliant is the 301 redirect. To test how good your own redirects are, simply test your redirect. So, find a domain x that you own that points to another domain y. You can test domain x here: http://web-sniffer.net
If you do not yet have a proper redirect (i.e. two domains show the same content when called!), then you should definitely use a redirect using this method.
What 301 forwarding means
The 301 status code signals to the search engine that the address is outdated and that it should only use the new address. Google also takes over the pagerank of the old page and transfers it to the new website. This is particularly interesting if, for example, you are moving your website to a new provider or a new domain.
Compare this 301 forwarding with a forwarding request to the post office to forward all incoming letters to your new address when you move house. All you have to do is let them know when the new visitors will be forwarded to where. If you don't do this properly, don't be surprised if you lose visitors!