Placing a 4XX HTTP position code to get a canonicalized URL has a similar impact as using the noindex tag: Google will probably be struggling to see the canonical tag and, hence, can’t transfer “link equity” towards the canonical version. Canonical tags are not the only way to declare a https://griffingaoic.hyperionwiki.com/1091104/5_simple_techniques_for_prestashop_hreflang_canonical_tags