Question string is eliminated only when wanted, pagination is retained and managed (an existing "prev/up coming" mechanism is necessary, more recent PS currently does it) Canonical URLs are applied to avoid duplicate articles and to point to search engines like yahoo which is the “unique” site. It is solely a https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html