Hreflang tags work for any site that is aiming to target numerous languages and/or nations with equated variations of the exact same page.
Similarly to the canonical tag, these tags are a ‘hint’ to Google. In other words, they’re not a ‘directive’ and they can be disregarded by Google, however for the most part, they tend to be embraced as they intend to serve a much better user experience for the end-user.
How to utilize hreflang tags on your website
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The 3 things to be knowledgeable about
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1. They ought to be bi-directional
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2. They ought to be self-referencing
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3. They ought to have a default page to draw on
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