DR vs DA: What Is the Difference?
DR and DA come from different SEO tool providers and use different models. Ahrefs Domain Rating focuses on backlink-profile strength, while Moz Domain Authority is a predictive ranking-strength metric. They should not be treated as interchangeable measurements or direct Google scores.
Different providers
DR is from Ahrefs; DA is from Moz. Each uses its own data and calculation.
Different values are normal
A site can have a noticeably different DR and DA because the metrics are built differently.
Neither is a Google metric
Google does not use DR or DA as public ranking scores. They are third-party tools for analysis.
Guest-post use
Use them as coarse screening aids. A relevant, healthy site with a modest metric can be a better fit than an irrelevant site with a larger number.
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