hreflang tags
What are hreflang tags
Hreflang tags send signals to Google and other search engines about the language you are using on a specific page and optionally which geo-location it is targeting. This helps search engines to show the most relevant page to users when there is more then one option. Hreflang tags are not a ranking factor per se. However, since it mght improve organic CTR and user engagement it can certainly indrectly impact a website’s search engine visibility. Classic examples for the use of hreflang tags are international webshops with different prices for different markets. Hreflang-tags can be implemented on the page or via the sitemap.