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Free Bulk Domain Authority Checker

This website authority checker is a completely free tool to check DA, DR, and other SEO signals for up to 10 domain names at once. Review each domain's backlink profile, spam score, and Karma Domain Metric (KDM) — then compare ranking signals side by side.

Use this DR/DA checker tool as a free tool to check the domain authority of any site. Enter each domain name without https:// or paths.

How to check Domain Authority

Use this free bulk authority checker to compare up to 10 domain names in one run. Paste your list, check DA and DR, then review scores side by side — no signup required.

  1. Paste domain names into the form above — one per line, without https:// or paths (e.g. example.com). Up to 10 domains per check.
  2. Click Check Domain Authority. The counter on the button shows how many valid domains are in your list.
  3. Compare metrics in the Results overview table: KDM, DR, UR, DA, spam score, backlinks, and referring domains for every domain at once.
  4. Click a domain name in the table to scroll to its card in Detailed breakdown — circular charts for KDM components and link-based scores.
  5. Use the Copy button below the table to paste the full results into Excel with group headers and column labels preserved.

What you get

  • Summary table — KDM plus link metrics (DR, UR, DA, SS, BL, RD) for quick comparison across your shortlist.
  • Detailed cards — per-domain charts for KDM (Mass, History, Continuity, Stability, Trend) and link-based scores.
  • Excel-ready export — one-click copy with headers for spreadsheets and reports.

Karma.Domains

Compare Your Domain and Find a Good Domain for SEO

Improve your domain research with full reports: Wayback history, Karma Score, brand signals, and 90+ filters. See how a website's DA and link profile relate to organic traffic from Google and placement in search engine results — beyond what a single quick check shows.

Open Karma.Domains App

Domain Authority Metrics Explained

Our bulk website authority checker returns seven SEO metrics per domain — KDM from web archive history, plus link-based scores for backlink strength and ranking context. Each one helps you screen domains before deeper research.

KDM — Karma Domain Metric

KDM is Karma.Domains' own 0–100 score built from Wayback Machine data. It reflects domain age, archive continuity, and how consistently a site attracted crawler attention — independent of its backlinks.

KDM adds a temporal dimension to classic link scores: a domain can show higher domain authority from links long after activity faded, while KDM surfaces that decay. It is not a direct Google ranking factor.

Read the full KDM guide on our blog

DR — Domain Rating

Domain rating is a 0–100 link-based score for overall domain strength. It reflects the quality and quantity of backlinks pointing to the domain — a stronger backlink profile usually means higher DR and greater ranking potential at the site level.

UR — URL Rating

URL rating measures link equity for a specific page, often the homepage. It relates to page authority concepts: a domain can have solid domain authority while an inner URL — or the entry page — carries a different score.

DA — Domain Authority

Domain authority is a predicted 0–100 score for how well a domain might perform in search engine results. The DA score summarizes backlink data into one comparable number — useful when you need to check DA across many domains in the same niche.

SS — Spam Score

Spam score flags SEO risk from 0 to 100 — lower is better. Elevated values may suggest manipulative link building; always read spam score alongside domain authority and content signals before trusting a site's search visibility.

Backlinks

Total backlinks show how many links point to the domain. Count alone is not authority — combine backlink volume with referring domains, DR, and DA to judge authority and backlink health for each domain.

Referring Domains

Referring domains count unique sites that link to you. Diversity often matters more than raw backlink totals when estimating a site's strength and trust signals for SEO.

Domain and page authority measure different layers: domain authority reflects site-wide strength, while page authority applies to individual URLs. Domain authority is calculated from link indices — your authority score depends on backlink quality, not traffic alone. This checker focuses on domain-level DA and DR in bulk; the page-level view still helps when you interpret URL rating alongside DA.

Frequently Asked Questions

What is a domain authority checker?

An authority checker estimates how strong a website is using SEO signals — mainly backlinks and link quality. Our free domain authority checker returns DR, UR, DA, spam score, backlink counts, referring domains, and KDM for up to 10 domains per run. This authority checker uses the same data families you would expect from a website authority checker built for domain investors and SEO teams.

What is domain authority and how is it different from page authority?

Domain authority summarizes link strength for an entire site on a 0–100 scale. Page authority applies the same idea to a single URL. They answer different questions: a domain can show solid site-wide DA while a specific page has a lower PA score. Our bulk run focuses on domain-level DA and DR; URL rating (UR) hints at homepage-level equity similar to page authority concepts.

Does domain authority affect Google rankings?

Domain authority is a third-party estimate, not a Google ranking factor. Still, sites with a higher domain authority often correlate with stronger backlinks and may rank in search more often — which can drive organic traffic and traffic from Google over time. DA helps you compare domains; it does not guarantee position on search engine result pages. Use it with content quality, relevance, and technical SEO.

How do I check DA for multiple domains?

Paste up to ten domain names — one per line — and click Check Domain Authority. This bulk checker works like a bulk DA PA checker for domain-level scores: you can check DA and DR together, compare your domain against rivals, and check your domain authority without signing up. To check the DA PA relationship in depth, open full reports on Karma.Domains for page-level context.

How many domains can I check at once?

You can paste up to 10 domains — one per line. Duplicate entries are removed automatically. Enter bare domain names (e.g. example.com) without paths or protocols when you check the domain.

What is Karma Domain Metric (KDM)?

KDM is a 0–100 score from Karma.Domains based on Wayback Machine history: archive volume, continuity, stability, and trend over time. Unlike DR or DA, it does not measure backlinks — it measures whether a domain had a real, consistent presence on the web. See our KDM blog article for details.

Are DR and DA the same thing?

No. Both are 0–100 link-based scores from different models and datasets. Domain rating (DR) and domain authority (DA) are useful directional benchmarks — not interchangeable. A good domain authority score on one scale may differ from DR on another. KDM complements both with archive history.

Is this authority checker free?

Yes. The free version requires no signup for DR, UR, DA, spam score, backlinks, referring domains, and KDM. It is a free DA checker and free tool for quick screening — like a PA checker for domain-level work, focused on DA and DR rather than full page authority reports. For deeper data, explore Karma.Domains.

Can I get this data via API or MCP?

Yes — on the Pro plan and above. Use the Public API for scripts and integrations, or connect the MCP server to Cursor, Claude, and other AI assistants. One API key from Profile → Settings; REST and MCP share the same rate limits.

KDM can be fetched for any domain name — it is calculated live from Wayback Machine history and does not require the domain to be in our database. Backlink-based scores (DR, UR, DA, spam score, backlinks, referring domains) are available only for domains already indexed in the Karma.Domains database. See the API documentation and MCP guide for endpoints, tools, and examples.

Why use a bulk checker instead of checking one domain?

Bulk checking saves time when comparing expired domains, auction lists, or competitor sets. Paste your shortlist, check the domain authority for each name side by side, and spot outliers before deeper research. Use our da pa checker workflow to improve your domain authority screening: high-scoring candidates stand out faster when you rank in search for the right acquisition targets.

How accurate are the results?

Link data and KDM are updated regularly from industry sources and Wayback Machine archives. These scores are estimates — use them to benchmark domains against peers and improve your domain authority strategy, not as guarantees of ranking or a website's authority in every niche. Values depend on fresh crawl data; recheck before major decisions.