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Tag Archives: Canonical
Canonical－指定標準網址
早前 Google, Yahoo! 及 Microsoft 共同宣布支持一個新的 tag： canonical （標準？正準？）。canonical tag 是用於指定一個網頁的「標準網址」，旨在改善內容重複的問題。 甚麼是標準網址？舉個例子，假設我有一個網上商店，其中某商品（id=18）頁面的網址是這樣的：