Check Domain Authority & Page Authority Free
Paste any domain to instantly see its DA, PA, DR and Spam Score — powered by transparent, publicly documented scoring. Single checks or bulk, always free.
Instant results
Real-time checks powered by live authority signals — no cached, stale numbers.
Bulk checking
Check up to 100 domains at once with CSV upload and export.
Spam Score included
Every check includes a Spam Score, HTTPS status, and domain age — not just DA/PA.
Transparent methodology
We publish exactly how every score is calculated. No black box.
What a DA PA checker actually measures
A DA PA checker estimates how much authority a website has earned, expressed as two scores on a 1–100 scale. Domain Authority (DA) covers a whole domain, while Page Authority (PA) covers a single URL.
Both are predictions, not facts. They model how likely a site is to rank based on the size and quality of its backlink profile, so they move slowly and are best read as rough tiers rather than exact numbers.
How to read your DA, PA, DR and Spam Score
Authority scores are logarithmic. Moving from 20 to 30 is ordinary work; moving from 70 to 80 takes years and a genuinely strong link profile, which is why comparing two sites in the same range tells you far more than any single number.
Domain Rating (DR) is the same idea measured on its own scale, so a site can sit at DR 40 and DA 25 without either being wrong. Spam Score runs the other way: a high score flags risk signals, so lower is better.
- Under 20 — new or small sites, or domains with very few earned links.
- 20–40 — established sites with a real, working backlink profile.
- 40–60 — strong competitors in most commercial niches.
- Over 60 — major publishers and brands you will rarely outrank on authority alone.
When to use a bulk DA PA checker
Checking one domain answers a question. Checking a hundred answers a decision, which is where a bulk DA PA checker earns its place in an outreach or link-buying workflow.
Paste a prospect list or upload a CSV, sort by authority, and read Spam Score beside it. A DA 45 domain with a high spam score is usually a worse link than a clean DA 25 one, and that pairing is the fastest way to see it.
Why these scores differ from Moz and Ahrefs
Every authority metric is proprietary to whoever built it. Moz calculates DA from its own index, Ahrefs calculates DR from theirs, and neither publishes the formula, so no third-party tool can reproduce their exact numbers.
Our scores are independent estimates built from free, public signals and documented openly on the methodology page. Expect them to track the same direction as Moz or Ahrefs, not to match digit for digit.
Frequently asked questions
A DA PA checker is a free tool that estimates a website's Domain Authority (DA) and Page Authority (PA) — two scores, on a 1-100 scale, that reflect how likely a site is to rank in search results based on the strength of its backlink and trust profile. DAPA Checker checks both instantly for any domain, free, with no signup.
Yes. Checking DA, PA, DR and Spam Score is 100% free with no account, no credit card, and no daily limit on single checks. Bulk checks support up to 100 domains per request.
Domain Authority (DA) scores the strength of an entire domain, while Page Authority (PA) scores a single page or the domain's homepage. A domain can have a high DA but a lower PA on any individual page that hasn't accumulated its own links yet. See our full DA vs PA vs DR guide for more detail.
Yes — paste up to 20 domains here, or use our dedicated bulk domain authority checker to upload a CSV and check up to 100 domains at once, then export the results.
DAPA Checker does not use Moz's proprietary Domain Authority metric or data. Our DA, PA and DR scores are independent estimates built from free, public authority signals (see our methodology page) and are directionally useful for comparing domains, but will not match Moz's exact numbers.