Say a plumber has backlinks from two pages: one about cats, and one about installing boilers. Relevance in this context means that chances are the latter link is most valuable. We don't know the full algorithm that Google uses to determine its search results — that's the company's "secret sauce." https://marcorjqbk.blogcudinti.com/23533734/o-que-significa-otimização-de-mecanismos-de-busca