Query string is removed only when needed, pagination is retained and handled (an current "prev/next" mechanism is needed, more recent PS currently does it) Canonical URLs are made use of in order to avoid replicate content material and to indicate to serps which happens to be the “first” website page. https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html