Free tool
Domain Authority Checker
Compare up to five domains — yours and your competitors — on the authority signals we can measure honestly. Domain registration age comes live from public registry data (RDAP). Proprietary metrics such as Moz Domain Authority appear only when the relevant provider is connected; where a provider is not available, this tool says "data unavailable" rather than inventing a number.
What Domain Authority actually is
Domain Authority (DA) is a metric invented and owned by Moz, a search-marketing software company. It predicts how likely a domain is to rank compared with other domains, based mostly on the quantity and quality of links pointing at it. Ahrefs has an equivalent called Domain Rating and Semrush has Authority Score — the three are calculated differently and are not interchangeable.
The most important fact about Domain Authority: Google does not use it. It is a third-party estimate, useful for comparing yourself against competitors, not a score Google awards or reads. A local business can and regularly does outrank higher-DA competitors on searches where relevance, proximity and reviews matter more than links.
What actually matters for a local business
For local search, raw domain authority is one signal among many — and often not the deciding one. Relevance (do your pages clearly cover the service and the place?), your Google Business Profile, reviews, and consistent business information across the web frequently matter more. Where authority does matter, unique referring domains — the number of different websites linking to you — is usually a more honest measure than raw backlink counts, because a thousand links from one directory are worth far less than ten links from ten local institutions.
That is why this tool leads with measurable, ownable facts — domain age, comparison against your actual competitors — rather than encouraging you to chase one proprietary number.
Common questions
Is Domain Authority a Google ranking factor?
No. Google has repeatedly confirmed it does not use Moz’s Domain Authority or any third-party authority score. These metrics are estimates of ranking ability, useful for competitor comparison only.
What is a good Domain Authority for a local business?
Context is everything. DA 25 can lead a local market where competitors sit at 10–20, and lose badly in one where they sit at 40+. Compare against the businesses that actually outrank you, not against national brands.
Why does this tool sometimes say "data unavailable"?
Proprietary metrics belong to their providers (Moz, Ahrefs, Semrush) and require licensed API access. When a provider is not connected we say so, because showing an invented number would be worse than showing none.
Does domain age affect rankings?
Not directly — Google says age itself is not a factor. But an older domain has had longer to accumulate links, mentions and trust, so it correlates with authority. It is also a useful trust check on competitors and suppliers.
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