JSON-LD for Website positioning is one, one-time cost and entirely devoted to delivering the appropriate schema for your site. Since it’s meant to replace the function necessary by an experienced World wide web developer, charging you a a person-time rate makes essentially the most sense. That way you pay it https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html