Scale your global presence by perfectly targeting users with localized URL alternatives.
Place these tags in the <head> of your pages or include them in your XML Sitemap.
Hreflang must be bidirectional. If page A links to page B with hreflang, page B must link back to page A. Otherwise, Google may ignore them.
Always include an `x-default` tag for users who don't match any of your specific language/region filters. Usually, this is your primary English page.