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Hello, We just have launch a new version of our website with a new utf-8 encoding. Thing is, we use comma as a separator and since the new website went live, I have a massive increase of 404 error of comma-encoded URL. Here is an example : http://web.bons-de-reduction.com/annuaire%2C321-sticker%2Csite%2Cpromotions%2C5941.html instead of : http://web.bons-de-reduction.com/annuaire,321-sticker,site,promotions,5941.html I check with Screaming Frog SEO and Xenu, I can't manage to find any encoded URL. Is anyone have a clue on how to fix that ? Thanks