Free Domain Authority Checker
Check website authority for up to five domains at once: rank among 130+ million domains in the open web graph, referring and outgoing domains, and a 0–100 score. Instant, no sign-up.
- No sign-up
- 5 free checks of 5 domains
- Free, no hidden limits
How to check
- Paste domain names, one per line, without https:// or paths.
- Click Check domains. The graph is stored in our database, so the answer is instant.
- Compare the score, rank and referring domains side by side. Domains absent from the graph are marked honestly.
What you get
- Authority score from 0 to 100 for each domain.
- Rank among all domains in the latest graph release and the percentile.
- Number of referring domains and outgoing domains.
- Number of hosts under the domain seen by the crawl.
What the numbers mean
- Authority score
- A 0–100 score derived from the domain's rank in the open web link graph: first place is 100, last place is 0, on a logarithmic scale. It is not DR, DA or any vendor metric and uses its own scale.
- Rank
- The domain's place among all domains of the graph release by harmonic centrality: how many domains link to it and how authoritative they are. Lower is better.
- Referring domains
- How many distinct domains link to this one in the graph release. Counted once per domain, not per link.
- Percentile
- The share of graph domains this domain outranks. 99% means it is in the top one percent.
Frequently asked questions
Where does the data come from?
From the open web link graph built from a crawl of billions of pages and refreshed every few months. We load each release into our own database, which is why the check is instant and free.
Why is my domain not in the graph?
The graph includes domains that at least one crawled page links to. A new or very small site may have no inbound links yet, so it is absent. That is a fact about the domain, not an error.
Is the score the same as DR or DA?
No. DR, DA and similar scores are vendor metrics built from their own link indexes. Our score is derived from the open graph rank. Treat them as different rulers that usually agree on direction, not on numbers.
How many domains can I check for free?
Five checks of five domains per tool without an account. When they are used up, sign up: you get a trial budget and can check without limits.
What does the full check add?
In the account you get link metrics from a professional index, year-by-year site history, a spam check across 14 categories and an AI verdict for every domain in a list.
More free tools
- Domain History CheckerArchive snapshots by year, first snapshot, technologies, title and language.
- WHOIS & Domain Age LookupRegistration date, expiry, registrar and domain age from the registry.
- DNS & Blacklist CheckerDNS records, parking signals and domain blacklists.
- Redirect CheckerWhere a domain leads now, by crawl and by archive year.
- Bulk Domain CheckerName flags, graph rank and registry status for a whole list.
Need the full picture before you buy?
DeepScan checks whole lists: year-by-year site history, links and donors, a spam check across 14 categories and a verdict with an explanation for every domain. Pay per checked domain, no subscription.