HTTP-301-302轉址的差異

HTTP 301 vs HTTP 302 網頁轉址的HTTP response status codes有兩種，分別為301與302。使用瀏覽器瀏覽網頁時如果遇到這兩種轉址，對人來講沒有差別。但對於搜尋引擎、SEO、瀏覽器就有重大的差異。處理網站遷移時務必要做好。 HTTP 301、302 在 RFC 中的定義如下。不過，對於SEO比較重要的是301 Moved Permanently 301 Moved Permanently The 301 (Moved Permanently) status code indicates that the target resource has been assigned a new permanent URI and any future references to this resource ought to use one of the enclosed URIs. 302 Found The 302 (Found) status code indicates that the target resource resides temporarily under a different URI. 為何301 Moved Permanently比較重要？