Query string is removed only when essential, pagination is retained and taken care of (an existing "prev/following" system is necessary, more recent PS presently does it) Meta keywords. Key phrases that you will have to determine in order to have your web site referenced by search engines like yahoo. It https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html