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Domain Authority Estimator

Estimate domain authority from backlink metrics you input. Compare multiple domains side by side with radar chart visualization.

Tested tool guide Tested browser tools Checked August 16, 2026

What Domain Authority Estimator does and how it behaves

This estimator turns the backlink measurements entered for each domain into an approximate authority result and places multiple domain profiles on a radar chart for side-by-side comparison. It is useful when you already have link data and want a common, quick reading across sites. The important distinction is that the result is an estimate, not a retrieved Moz Domain Authority score or Ahrefs Domain Rating. Matching a vendor's input numbers does not make this tool's score interchangeable with that vendor's proprietary metric.

How the result is produced

1

Enter comparable link data

Create an entry for each domain and supply the backlink metrics requested by the form. The domain name identifies the entry, while the numerical fields provide the evidence used for its estimate. Using the same data source, reporting date, and measurement scope for every domain makes the comparison more meaningful. The tool does not discover missing backlink data from a domain name alone.

2

Read the comparison

After calculation, read each estimated authority result alongside the radar chart. The chart shows the relative shape of the submitted domain profiles and helps reveal which domains lead on particular plotted measures. Inspect the displayed numbers as well as the polygons. The area enclosed by a radar polygon is not an additional authority score or a meaningful total of its axes.

Good uses

  • Screen a short list of outreach prospects after collecting the same backlink measurements for every candidate domain.
  • Compare your site with named competitors using link metrics captured from one provider on the same reporting date.
  • Test how revisions to an entered backlink profile affect its estimate before summarizing the comparison in an SEO report.

Limits and checks

  • The result is a model-dependent estimate and should not be labeled as an official Moz Domain Authority or Ahrefs Domain Rating.
  • Backlink figures from different providers or crawl dates may count links and referring sites differently, weakening the comparison.
  • Radar-chart area can exaggerate visual differences and is not a valid quantity to add, average, or treat as another score.

Common questions

Does this tool check my live backlink profile?

No. It estimates authority from the backlink values you provide; entering a domain name does not make it a backlink crawler. Obtain the measurements separately, then enter them consistently. If one domain's figures are stale, incomplete, or collected under a different counting method, the resulting side-by-side comparison will reflect those inconsistencies.

Is the estimated score the same as Moz DA or Ahrefs DR?

No. Moz's Domain Authority and Ahrefs' Domain Rating are provider-defined metrics with their own link data and calculation methods. This estimator produces a result from the fields you enter, so use it for comparisons within one consistently prepared dataset. Do not substitute it for a particular provider's score when a client, marketplace, or reporting template explicitly requests that metric.

References and verification

The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.

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