Serps don’t index 4XX pages given that they don’t get the job done. Therefore, they’ll disregard any canonical tags pointing to this kind of pages and sometimes wind up indexing the incorrect (non-canonical) Variation on the web site. Replicate content material showing up while in the SERPs: This may result in https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html