Moz Pro, founded in 2004, predates every other tool in this category by at least six years and helped define modern SEO practice itself, including popularizing Domain Authority, a widely referenced third-party metric for a site's relative ranking strength that other tools across the industry still reference or replicate in some form.
That foundational role gives Moz a specific kind of credibility newer tools can't replicate: two decades of continuous operation through multiple eras of search algorithm change, plus a long-running educational content library, the Beginner's Guide to SEO among it, that shaped how a generation of practitioners learned the discipline in the first place.
There's no free plan; pricing starts around $49 a month. For an SEO professional who values a long-established, industry-defining tool and its widely referenced metrics like Domain Authority, rather than a newer entrant without that same historical weight, Moz Pro's foundational role in the category addresses that specifically.
