Hreflang="en-us": the ISO code to the language made use of to the webpage, followed by the ISO code for the state at which that webpage is aimed (the region/location code is not generally needed) If you are using WordPress, there may be a setting which you could use so as https://minibookmarks.com/story18803611/the-definitive-guide-to-automatic-hreflang-tags-canonical-tags-all-pages-seo