how to add headers to generated or shared links?

Question

Anyone know how to make a shareable link that has description/seo tags/headers like this?

https://www.facebook.com/share/p/2f2KwJ94rfDzB9G3/?

I'm trying to make the same thing but for blog posts that can be shared publicly

Netherland Dwarf · Answer

@Basset Fauve de Bretagne  its called open graph

how to add headers to generated or shared links?

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