The drawback to using strategies 1 and a pair of is the fact both of those will decelerate your page load time. In case you have many translations and variants within your content and they are finding that it's building a concern, the third alternative may very well be greatest. https://addons.prestashop.com/it/seo-indicizzazione-naturale/30904-tag-hreflang-automatici-e-tag-canonici-seo.html