Domain Authority Checker
Look up how strong a domain is. Authority scores are displayed when a score provider such as Moz or Open PageRank is connected to this site; in every case you get a set of trust signals measured live from the registry, DNS and the site's certificate.
- Encrypted connection
- No sign-up
- Free to use
How to use Domain Authority Checker
- Enter the domain you want to evaluate.
- Select Check authority.
- Read the provider scores, if any are available, with the explanation of what each number means.
- Go through the verifiable trust signals and follow the links for a deeper check of anything that is flagged.
Domain Authority Checker features
No fabricated numbers
A score appears only when it comes from a real provider. Without one, the tool says so plainly.
Provider metrics
Domain Authority, Page Authority, linking root domains and spam score from Moz, or PageRank and global rank from Open PageRank, when connected.
Domain age
The registration date from the registry, the one signal a site owner cannot alter.
HTTPS check
Confirms that a trusted, matching and unexpired certificate is served.
DNS health
Whether the domain resolves, how many name servers it has and whether DNSSEC is on.
Email authentication
SPF and DMARC status for domains that handle mail.
When to use Domain Authority Checker
- Screening a site before requesting or accepting a link from it.
- Comparing your own domain with competitors over time.
- Doing a first technical review of a domain you may buy.
- Checking that the basics are in order before investing in content and promotion.
Domain Authority Checker FAQ
What is Domain Authority?
Domain Authority, or DA, is a score from 1 to 100 developed by Moz. It estimates how likely a domain is to rank in search results compared with others, based mainly on the number and quality of sites linking to it. Other companies publish similar metrics under names such as Domain Rating or Authority Score.
Why does this page not show a score for my domain?
Authority scores are calculated by private companies from their own crawl of the web and are only available through their paid or registered APIs. This tool displays them when the site operator has connected such a provider. It never estimates or simulates a score, because a made-up number would be worse than none.
Does Google use Domain Authority?
No. It is a third-party metric that Google neither uses nor endorses. It is useful for comparing sites with each other and for tracking a trend, not as a measure of how Google sees a site.
What is a good Domain Authority?
There is no absolute answer, because the scale is relative and logarithmic: moving from 20 to 30 is far easier than from 70 to 80. Compare your score with the sites that rank for the searches you care about. Being in the same range as your competitors matters more than any particular number.
How can I improve a domain's authority?
By earning links from relevant, reputable sites, which in practice means publishing things worth linking to and making them known. Fixing technical basics such as HTTPS and a working site helps visitors and crawlers but does not by itself raise a link-based score.
What are the trust signals based on?
On live lookups: the registry for the registration date and DNSSEC, DNS for name servers and addresses, a TLS connection for the certificate, and DNS TXT records for SPF and DMARC. Each can be verified with the dedicated tools linked from the result.
Authority scores in perspective
Search engines rank pages using hundreds of signals, and links from other sites remain among the most important. Because Google does not publish a link score, several SEO companies built their own. Each crawls a large part of the web, counts who links to whom, weighs those links and compresses the result into a number. Domain Authority is the best known of these numbers. They are useful as a rough comparison, and they agree with each other only loosely because every provider sees a different part of the web.
This explains why an honest checker cannot simply compute a score on demand. The calculation needs a link index covering billions of pages, which only the providers have. Tools that display a score without naming a source are either reselling a provider's data or inventing the number. Here the source is always named, and when none is connected the score section is empty by design.
The trust signals fill a different role. They do not measure popularity; they show whether a domain is run with care. A site that has been registered for years, serves a valid certificate, has redundant name servers and protects its email with SPF and DMARC is not guaranteed to be good, but a site that fails several of these checks deserves a closer look before you link to it, buy from it or acquire it.
If you are working on your own domain, treat authority as a result rather than a target. Scores rise when other sites choose to reference yours, and that follows from useful content, a fast and reliable site, and time.