Instance: You might have an e-commerce Web page with product internet pages for various dimensions of a selected t-shirt. 8 fields can be obtained by default, and every is accompanied by a listing of obtainable keyword phrases. Some keywords and phrases are mandatory and so are indicated with a "*". https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html