The downside to using procedures one and a pair of is usually that both of those will decelerate your page load time. In case you have a number of translations and variants of your respective articles and are discovering that it's building a concern, the third choice could be greatest. https://addons.prestashop.com/en/seo-natural-search-engine-optimization/30904-automatic-hreflang-tags-canonical-tags-all-pages-seo.html