What are some of the ways to identify authority sites?
Many think that if a site is the first one that appears on the first page of search engine results, then it must be an authority site. Although this may be the case, it does not mean that any other sites listed beneath it are not authority sites too.
Generally speaking, using placement only as a way to identify authority sites is not the best option. You should also focus on other things, because
algorithm updates have an effect
there are also social signals that need to be considered
So I think that ultimately it is more about social engagement than anything else. What do you think?