Setting a 4XX HTTP status code for your canonicalized URL has exactly the same impact as using the noindex tag: Google is going to be not able to see the canonical tag and, therefore, can’t transfer “link fairness” towards the canonical Edition. You need to use canonical tags everytime you https://greatbookmarking.com/story18849151/details-fiction-and-etiquetas-autom%C3%A1ticas-hreflang-canonical-etiquetas-seo