Although all of us in Spain and Latin America speak Spanish, we do not speak the same, as happens in the English language of Texas, New York, Pert or Edinburgh.
A word in Colombia can be an insult in Argentina, and a formal expression in Uruguay, in Ecuador, it can be the opposite. The same language, but we do not speak the same.
Even within Spain itself, it is not spoken in the different states in the same way. For reasons of SEO, we must take this into account. To get a guest post in Spanish published requires more than knowing the email of the news site and getting a Spanish copywriter.
Here you can see an example of a guest post in Spanish published by us in Mallorca, Spain, in a news site of high DA (69).