Hreflang="en-us": the ISO code for that language employed on the website page, accompanied by the ISO code for your place at which that webpage is aimed (the region/area code isn't generally essential) You ought to use canonical tags whenever you hold the similar or identical content available at multiple URLs. https://apollobookmarks.com/story18759337/top-guidelines-of-automatic-hreflang-tags-canonical-tags-all-pages-seo