Moz DA Checker Review 2026

Moz's Domain Authority (DA) is one of the most quoted numbers in SEO, and the Moz DA checker is how most people look it up. But what does the score really mean, is Moz worth paying for just to see it, and can you get the same insight for free? This honest 2026 review covers what the DA checker does, how Moz's pricing works, its limitations, and the real free alternatives.

What the Moz DA checker actually measures

Domain Authority is a predictive score, not a measurement of anything Google publishes. Moz built it to estimate how likely a domain is to rank in search results, expressed on a scale from 1 to 100. The score is calculated with a machine-learning model that weighs dozens of signals drawn from Moz's own web index, Link Explorer, including the number of linking root domains and the total quantity of links. Because the model is trained to correlate with rankings, a higher DA suggests a stronger overall link profile relative to other sites.

Two properties of DA trip people up. First, it runs on a logarithmic scale, so climbing from 20 to 30 is far easier than climbing from 70 to 80; the top of the range is crowded with the world's biggest sites. Second, DA is comparative, not absolute. A DA of 40 is only meaningful next to your competitors' scores, not as a target in isolation. If you want the concept explained without the brand lens, our domain authority checker guide and site authority checker guide both walk through it.

DA is not a Google ranking factor

This is the single most important thing to understand before you spend money chasing a number. Google does not use Domain Authority. DA is a third-party approximation created by Moz to help marketers gauge relative site strength; it is not part of Google's ranking systems and never has been. Google's own spam policies documentation describes the signals and behaviors Google does and does not reward, and third-party authority scores are not among the factors it uses.

The practical takeaway: treat DA as a directional benchmark for comparing sites and tracking your own trend over time, not as a goal Google rewards directly. Chasing DA by buying links is both ineffective for real rankings and a violation of Google's link-scheme rules. Focus your effort on the things Google actually measures, such as the real-world loading and stability signals defined at web.dev and covered in our Core Web Vitals guide, and on earning genuine links, which our complete backlinks guide covers.

Moz DA checker features and pricing

The DA checker itself lives inside Moz's Link Explorer, which does more than show a single number. It reports linking root domains, total backlinks, top linking pages, anchor text distribution, and Spam Score, alongside DA and its sibling metric Page Authority (PA) for individual URLs. The free MozBar browser extension surfaces DA and PA as you browse search results, which is handy for quick competitive glances.

On pricing, Moz operates a freemium model. You get a limited number of free Link Explorer queries per month with a Moz account, plus the free MozBar. Beyond that, full access requires a Moz Pro subscription, which is tiered by usage: the entry tier starts at a mid double-digit monthly price and higher tiers add more keyword tracking, more queries, and more crawl capacity. Moz typically offers a discount for annual billing and a free trial. Because SaaS pricing shifts, check the current figures on moz.com rather than trusting any fixed number you read in an article.

Where the Moz DA checker falls short

No tool is perfect, and DA has well-known limitations worth naming plainly.

• It is not Google's number. Optimizing for DA is optimizing for a proxy, which can diverge from actual ranking behavior.
• Index coverage differs from competitors. Moz's link index is large but not identical to Ahrefs or Semrush, so the same site can show different authority scores across tools. Never compare a Moz DA to an Ahrefs DR as if they are the same metric.
• Score updates can shift benchmarks. When Moz recalibrates its model, many sites' DA moves at once. A drop can reflect a model change rather than anything you did.
• It rewards link quantity signals heavily. A site can post a respectable DA while still ranking poorly for competitive queries, because relevance and content quality are not captured.

Free alternatives to the Moz DA checker

If you want an authority-style score without a Moz Pro subscription, several real tools offer a free equivalent. None of them is Google's ranking, but each gives a comparable directional signal.

1. Moz's own free tier. Link Explorer's monthly free queries plus MozBar remain the most direct way to see DA specifically, at no cost, for light use.
2. Ahrefs Website Authority Checker. A free tool that returns Ahrefs' Domain Rating (DR), the closest analog to DA, for any domain. Read our Ahrefs backlink checker review for how its wider suite compares.
3. Semrush Authority Score. Available through Semrush's tools, with limited free usage on a free account before hitting paywalls.
4. Ubersuggest. Offers a Domain Authority-style score with a limited number of free daily searches; see our Ubersuggest review.

For a like-for-like comparison of Moz's stand-alone authority product, our Moz Domain Authority checker review goes deeper on that specific tool, and if your real goal is site health rather than a vanity score, start with our SEO site checker guide.

Should you rely on DA at all?

Use DA the way a weather forecast uses a percentage: a useful directional estimate, not a promise. It is genuinely handy for quickly sizing up a prospective link partner, for tracking whether your own link profile is trending up, and for rough competitive triage. It is a poor target to obsess over, a bad thing to buy links for, and a metric you should never confuse with Google's actual ranking. Pair it with real diagnostics, and it earns a small, sensible place in your toolkit.

Frequently asked questions

Is the Moz DA checker free?

Partly. You can check Domain Authority free in limited amounts using Moz's Link Explorer with a free account, plus the free MozBar browser extension. Higher-volume checking and the full feature set require a paid Moz Pro subscription.

Does Google use Domain Authority as a ranking factor?

No. Domain Authority is a Moz metric, not a Google metric, and Google does not use it to rank pages. It is a third-party estimate of relative site strength, useful for comparison but never a direct ranking signal.

What is a good Domain Authority score?

There is no universal target, because DA is comparative and runs on a logarithmic scale. A score is only meaningful next to your direct competitors. Aim to trend upward and to match or beat the sites you compete with, rather than chasing a fixed number.

Why is my Moz DA different from my Ahrefs DR?

They are different metrics from different tools, calculated on different link indexes with different models. Moz's Domain Authority and Ahrefs' Domain Rating are not interchangeable, so a gap between them is expected and does not mean either is wrong.

What are the best free alternatives to check authority?

Real free options include Moz's own limited Link Explorer and MozBar, the Ahrefs Website Authority Checker for Domain Rating, Semrush's Authority Score with limited free usage, and Ubersuggest's daily free searches. Each gives a directional authority estimate rather than a Google ranking.