The Claim: Deep Link Ratio Is A Ranking FactorTo determine if deep link ratio is a ranking factor, we must first define deep links. To calculate your deep link ratio, divide your number of deep links by the total number of inbound links. In 2004, you’ll find one of the first mentions of a deep link ratio from a link building agency. Deep Link Ratio Is Definitely Not A Ranking FactorLet’s be clear: “deep link ratio” is obsolete terminology, and it’s a mindset you should avoid in SEO. While links are a confirmed ranking factor, a deep link ratio is not a Google ranking factor.