301 Redirection
If the site is a new site, you want to preserve all of your links from search engines. In this case, you need to make sure that the old links give a 301 (Moved Permanently) response when the old URLs are requested. This will allow the web crawlers to update their databases with your new links as well as keep the old links working in the meantime.
If the site is a new site, you want to preserve all of your links from search engines. In this case, you need to make sure that the old links give a 301 (Moved Permanently) response when the old URLs are requested. This will allow the web crawlers to update their databases with your new links as well as keep the old links working in the meantime.