The free Domain Authority Checker shows the Domain Authority of any website. Enter a domain and the tool returns its Domain Authority and Page Authority scores, along with its spam score and the number of linking domains. The data comes live from Moz, the company that created these metrics, so the numbers you see are the real Moz scores, not an estimate of our own.
Domain Authority, or DA, is a score from 1 to 100 developed by Moz that predicts how well a website is likely to rank in search results. A higher score suggests greater ranking strength. It is a comparative measure, most useful for weighing one site against another or tracking a site over time, rather than an official ranking factor used by search engines.
How to Check Domain Authority
- Enter a domain. Type the website address you want to check.
- Check. The tool queries Moz for the site's metrics.
- Read the scores. See the Domain Authority, Page Authority, spam score, and linking domains.
Understanding the Scores
Each number tells you something different. Domain Authority estimates the ranking strength of the whole domain, while Page Authority does the same for a single page. The spam score flags characteristics Moz associates with sites that risk penalties, so a high spam score is a warning sign. Linking domains counts how many separate websites link to the site, a signal of its backlink profile. Read together, these give a quick picture of a site's authority and link health.
What Domain Authority Is, and Is Not
It is important to be clear about what this score means. Domain Authority is Moz's metric, not Google's, and Google does not use a Domain Authority score to rank pages. DA is a useful third-party estimate built from link data, best used for comparison: is this site stronger than that one, is my score rising over time, how do I compare to competitors. A high DA does not guarantee top rankings, and a lower DA does not prevent them. Treat it as one helpful signal among many, not as a verdict from the search engines themselves.
When to Check Domain Authority
- Sizing up a competitor. Compare a rival site's ranking strength against your own.
- Evaluating a link opportunity. Gauge the authority of a site you might want a backlink from.
- Tracking progress. Watch your own score over time as you build links and content.
- Vetting a domain. Check the authority and spam score of a domain before acquiring it.
Related SEO Tools
To dig into a site further, run a full SEO score check, look up its domain age, or check its hosting and registrar.
