Only canonical URLs ought to be mentioned as part of your sitemap, While Google suggests that doing this is usually a weak canonicalization sign. En muchas ocasiones, en las tiendas online se generan URLs que expresan filtros y códigos de seguimiento, en los cuales conviene utilizar la etiqueta canonical (porque https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html