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I try to balance the pros and cons of updating the URL, given that both point to the same article (in the http://www.companyname.com/news/entertainment/Trump-says-he-wants-to-ban-search-engines?id=12345678 URL, only the articleid is used by the db to fetch the article, all text content before the ?id= is irrelevant), so it's not the issue of losing trafic. Pro of udating is having a fresher timestamp displayed in google organic. That's for sure. Con is the fact that google could induce from the fresher timestamp that it's a "new" article and that all its accumulated weight (referrals, social mentions...) would be lost. That's not for sure, and that's why I'm looking for advice. Best, Yves