The tag will not conceal genuine duplicate information that you'll have on your internet site, such as similar products descriptions for different products. Google will only study as a result of your hreflang tag that information “a” is a translation of material “b.” E-mail — List of e-mail sent from https://addons.prestashop.com/en/seo-natural-search-engine-optimization/30904-automatic-hreflang-tags-canonical-tags-all-pages-seo.html