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I have two same url https://www.example.com/postal-codes-zips/location/ and https://www.example.com/postal-codes-zips/location/?lang=en with canonical:https://www.example.com/postal-codes-zips/location/ both of them.The best practises for solution of Alternate page with proper canonical tag
[edited by: engine at 2:21 pm (utc) on Jul 29, 2019]
[edit reason] please use example.com [/edit]