Instance: You've got an e-commerce Web page with product or service web pages for different sizes of a particular t-shirt. 8 fields can be obtained by default, and every is accompanied by a listing of accessible keywords. Some key terms are necessary and they are indicated by using a "*". https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html