Controllore DA di Moz, gratuito: cosa offre realmente il piano gratuito di Moz nel 2026

Searching for a "free Moz DA checker" turns up two kinds of results: Moz's own tools, which are free up to a genuinely small allowance, and third-party sites that read Moz data on your behalf and are free in ways they rarely explain.

This post is about both, written by people running the second kind. We will be specific about our own limits, because the interesting part of this topic is the quota arithmetic that every free DA checker is quietly doing.

What Moz gives away for free

There are two separate free allowances and they are easy to confuse.

Moz Link Explorer — 10 queries per month. This is the web interface most people mean by "Moz". A free Moz Community account, registered with a verified email, gets 10 queries a month. A query covers one root domain, subdomain or page, and returns Domain Authority, Page Authority, Spam Score, linking domain counts and a sample of anchor text. The same 10-query allowance also applies to Keyword Explorer and the competitive research tools.

Moz API free tier — 50 rows per month. This is the developer-facing product. You authenticate with a token and request metrics programmatically; each returned record counts as a row. 50 rows a month, free, including Domain Authority and Page Authority. It exists so people can build dashboards and internal tools rather than click through the UI.

Both are real and both are small. Ten queries disappears in one competitor-research session. Fifty rows disappears faster than that if your tool is public.

Why third-party "free Moz DA checkers" exist at all

If Moz hands out 10 queries a month, how does a site offer unlimited free DA lookups?

Three answers, and it is worth knowing which one you are using:

1. They pay for a Moz API plan and recoup it with advertising, interstitials or an upsell. The data is genuine Moz data; you pay with attention.
2. They are not using Moz at all. They return Ahrefs DR, Majestic Trust Flow or their own invented metric, labelled loosely enough that you assume it is DA. This is the most common form of quiet dishonesty in this niche.
3. They use a free allowance and fall back to an estimate when it is spent. Honest if the fallback is labelled, misleading if it is not.

We are the third kind, so here is exactly how ours works.

How our free DA checker reads Moz data

Our DA checker calls Moz's Links API first. When Moz answers, you get Moz's actual Domain Authority — not a derivative, not a rescaled proxy — and the result is tagged with its source in the response.

Because the free allowance is 50 rows a month across everybody who uses the tool, two things follow:

• There is a cap of two checks per IP per day. It is not an upsell gate. There is no paid tier to upgrade to; the cap exists so that one enthusiastic user cannot spend a month of shared quota in an afternoon.
• A real Moz reading is cached for about 30 days. DA only updates when Moz refreshes its index, so re-querying a domain weekly would burn quota for an identical number. The badge you embed re-reads on that same cadence.

What happens when the free allowance runs out

This is the part most tools do not document, so here is ours in full.

When the Moz allowance is spent — or Moz is rate-limiting, or the account quota has been exhausted — we do not return an error and we do not pretend. We compute an estimate from OpenPageRank, a free index with a much larger daily allowance, and map its 0-10 score onto the DA scale using a piecewise-linear curve calibrated against a 50-domain sample:

Any decimal in between is interpolated. We publish the curve because an estimate you cannot inspect is indistinguishable from a number someone invented.

Three honest caveats about it:

• It is an approximation of a prediction. DA is already Moz's model of Google; this is our model of Moz's model. Treat the figure as a band, not a reading.
• Estimated results are flagged in the response and labelled in the interface, so you always know which of the two you received.
• Estimates are cached for only a day, not a month, so the tool upgrades itself back to real Moz data as soon as the monthly allowance refills.

If you need an authoritative Moz number for a client report or a link purchase, use your own 10 Link Explorer queries on the domains that matter. Use a free checker for breadth — scanning twenty prospects to find the three worth a real query.

Do I need a Moz account to check DA?

Not for ours — there is no account, no email and no verification step. You will need a free Moz Community account if you want to use Link Explorer's own 10 monthly queries directly, which is worth having alongside any third-party tool for the handful of domains where you need the authoritative figure and the anchor-text detail.

Is a free Moz DA checker accurate?

It depends entirely on whether it is actually reading Moz. When ours returns a Moz-sourced result, the DA is Moz's own figure and is exactly as accurate as Link Explorer. When the monthly allowance is spent, you get a labelled OpenPageRank-derived estimate instead, which is accurate enough for comparing prospects and not accurate enough to quote in a contract. The failure mode to watch for in other tools is the one that never tells you which of the two you are looking at.

What is the difference between DA and Moz Spam Score?

Domain Authority predicts ranking ability; Spam Score flags how many of Moz's spam signals a site trips. They are separate numbers from the same API, and a site can have a respectable DA with an uncomfortable Spam Score — common on domains that bought links at some point. Our trust score is deliberately built from a different basket of signals entirely, with every weight published, so it is worth reading as a second opinion rather than a duplicate.

The quota arithmetic, worked out

It is worth seeing the numbers, because they explain every design decision a free DA tool makes.

Fifty rows a month is 1.6 lookups per day for an entire public tool. A single curious visitor checking their own site plus four competitors spends three days of allowance in one sitting. Without constraints, a free DA checker reading the Moz free tier would be exhausted by the third of every month, every month.

Two mechanisms make it workable:

A per-IP daily cap. Ours is two checks per IP per day. It sounds stingy until you do the division above, at which point it looks generous.

A long cache on real readings. A Moz-sourced result is held for roughly 30 days, which matches how often Moz refreshes its index anyway. The practical effect is that popular domains become effectively free to serve — the hundredth person to check a well-known domain costs nothing, because the first person already paid for it and the number has not changed since. The quota is only spent on domains nobody has looked up recently, which in practice means your own site.

This is also why a tool promising unlimited Moz lookups with no account is either paying for an API plan or not reading Moz at all.

What the Moz API returns besides DA

When our Moz call succeeds, the response carries more than the one number we lead with:

• Domain Authority — the 0-100 domain-level prediction
• Page Authority — the same idea scoped to a single URL
• Spam Score — how many of Moz's spam signals the domain trips
• Referring domains — how many distinct domains link in
• Inbound link counts — the raw total, always much larger than the referring-domain count

Spam Score is the one most people never look at and probably should. A domain with a decent DA and an uncomfortable Spam Score is the classic profile of a site that bought links at some point — useful to know before you pay for a listing on it.

How to tell whether a "free Moz checker" really uses Moz

A short field test, since the claim is unverifiable from the marketing copy:

1. Check one domain you already know. Run it through Moz Link Explorer with one of your 10 free monthly queries, then through the third-party tool. Moz-sourced numbers match exactly. They do not "approximately" match.
2. Look for a source label. Any tool willing to tell you where a number came from will say so next to the number. Silence is informative.
3. Compare against DR. If a tool's "DA" sits suspiciously close to Ahrefs's Domain Rating across several different domains, you are probably looking at DR wearing a DA label.
4. Try a brand-new domain. Moz often has no data at all for a domain registered last week and will say so. A tool that confidently returns a score for a seven-day-old site is computing something of its own.

Is the Moz free tier enough for an agency?

No, and it is not meant to be. Ten Link Explorer queries covers a single prospect audit; 50 API rows covers a small internal dashboard refreshing a handful of tracked domains. Any agency reporting on client link profiles every month will need a paid plan, from Moz or a competitor. Free tiers, ours included, are built for the breadth pass — scanning many domains cheaply to find the few that justify a real query.

Does an embedded DA badge help my SEO?

Not directly, and anyone claiming otherwise is selling something. A badge on your own site cannot raise your own authority — that would be circular. What it does is communicate to a human reader who already understands the metric: a media kit, an agency portfolio, a sponsorship page. The honest case for it is persuasion, not ranking.

The one real SEO side effect runs in the other direction. Our badge carries a small attribution link back to us, which is how a tool with no paid tier stays free. We would rather state that plainly than run a "free" tool that quietly monetises your visitors instead.

Why does my DA differ between tools?

Because they are different metrics from different crawls. Moz's DA, Ahrefs's DR and Semrush's Authority Score are three vendors' models of the same underlying idea, each built on its own index. Moz's index is smaller than Ahrefs's, so recently-earned links often show up in DR before they show up in DA. Disagreement between them is normal and usually a crawl-coverage story rather than an accuracy one.

Related free tools

• Free DA checker — Moz-sourced Domain Authority with an embeddable badge
• How to check Domain Authority — what the number means once you have it
• Free DR checker — Ahrefs's Domain Rating for cross-checking
• Backlinks counter — referring-domain totals