As you can see, this is a discussion that could easily lead to a whole other article.
So, is it legal in your country? If you're in the Middle East or Northern Africa, the answer is probably no (Islam prohibits gambling) in most (if not all) of Europe, the answer is definitely yes in the United States, the answer is that it depends on the state you live (although it should be observed that, in most American states, online gambling is at least not criminalized). Usually, it is as legal as any other type of sports betting in the country/state you’re based in. When talking about online football gambling, a question that is often made is if it’s considered a type of legal betting or not.