Paste up to 50 domains and get Moz Domain Authority, Page Authority and Spam Score for each of them in one sortable table. The checker runs on your own Moz API key, so the numbers come straight from Moz, and you can switch to Ahrefs, Semrush or DataForSEO to see their own authority scores, labelled as theirs.
Free, no sign-up. Without an API key you see example data, and your key stays in your browser.
Enter one domain per line, pick a data provider and press Run. Moz is selected by default because Domain Authority and Page Authority are Moz metrics. The table gets one column for each metric the chosen provider returns, with the provider's name in the column header, so a Moz DA and an Ahrefs DR never end up in the same column. Sort by any column, copy the rows into a spreadsheet or download them as CSV.
0 of 50 domains
Without a key the table shows example data.
Moz returns Domain Authority (1 to 100), Page Authority (1 to 100) and Spam Score (1% to 100%). These are the only real DA and PA numbers.
Ahrefs has no Domain Authority. It returns Domain Rating (DR) and URL Rating (UR), its own 0 to 100 scores from its own link index. They answer a similar question, but they are not DA and do not convert to it.
Semrush has no Domain Authority. It returns Authority Score, its own 0 to 100 score that combines link data with organic traffic and spam signals.
DataForSEO has no Domain Authority. It returns its own rank on a 0 to 1000 scale and a backlinks spam score from 0 to 100, both calculated from DataForSEO's own link index.
These rows are example data for fictional example domains, not real Moz measurements. Add your own API key and press Run to check real domains.
| example.com | 41 | 46 | 2 |
|---|---|---|---|
| example.org | 28 | 33 | 7 |
| example.net | 12 | 19 | 38 |
Domain Authority (DA) is a score from 1 to 100 that Moz calculates to predict how likely a whole domain is to rank in Google compared with other domains. Moz builds it from its own link index, mainly the number and quality of the root domains that link to a site, and tunes it with a machine learning model against real search results. People often call it domain strength, which is a fair description as long as you remember whose index the strength is measured in. Moz explains the details on its Domain Authority page.
The scale is logarithmic, so moving from 20 to 30 is far easier than moving from 70 to 80. DA is also relative: Moz recalculates it as its index changes, and a domain can lose a few points without losing a single link because other domains grew faster. Google does not use Domain Authority, and Moz says so itself. Treat it as a way to compare sites with each other, not as a number Google sees.
Page Authority (PA) is the same idea applied to a single URL: a 1 to 100 score from Moz that predicts how well that one page could rank. DA describes the whole domain, PA one address on it. A strong domain can still have weak pages, and a single page with many good links can score higher than the rest of its site.
When you enter a bare domain, this page authority checker shows the PA Moz gives the domain's root address, which in practice is the home page. That makes the checker a quick PA DA checker for comparing home pages. For the PA of a deeper page, look up its full URL in Moz Link Explorer.
The whole domain, 1 to 100, from Moz. Use it to compare sites.
One URL, 1 to 100, from Moz. Use it to compare single pages.
The whole domain, 1% to 100%, from Moz. See the spam score checker for what it means.
There is no universal good score, because DA only means something next to the sites you compete with. A local business at DA 15 can be the strongest site for its own town's searches, while DA 50 is unremarkable among national news sites. The useful domain authority check is a comparison: put your own domain and the domains ranking above you for your main searches into the bulk checker and look at the gap.
If the sites above you sit at 40 to 50 and you are at 12, links are a likely part of the difference. If you are level with them, the difference is more likely in the pages themselves: how well they answer the search, how complete they are, and how the page is built.
Moz shows DA in its own tools, such as Link Explorer and the MozBar browser extension. This page asks the Moz API instead, which lets you check 50 domains in one go and export the result. You need a Moz API token, which you create in your Moz account. Moz bills API use under its own plans, and the key dialog links to Moz's sign-up page and API documentation.
Your token stays in this browser. Moz's API does not accept calls straight from a browser, so each request passes through a small function on gscwizard.com that forwards it to Moz without storing or logging your token or the results.
Yes. The page is free, needs no sign-up, and the example table works without any key. Real numbers come from Moz, Ahrefs, Semrush or DataForSEO, so a real check uses API credits on your own account with that provider, at that provider's prices. GSC Wizard charges nothing for the checker and sees neither your key nor your results.
Other link indexes have their own authority scores. They are useful, but none of them is Domain Authority, so the checker labels every number with the provider that produced it and never mixes two providers in one column.
| Score | Provider | Scale | Built from |
|---|---|---|---|
| Domain Authority (DA) | Moz | 1 to 100 | Linking root domains and link quality in Moz's index, fitted against Google results |
| Domain Rating (DR) | Ahrefs | 0 to 100 | The strength of a site's backlink profile in Ahrefs' index |
| Authority Score (AS) | Semrush | 0 to 100 | Link data, organic search traffic and spam signals |
| Rank | DataForSEO | 0 to 1000 | DataForSEO's own link index, with a PageRank-style calculation |
Do not convert one score into another. A site with DA 40 can have a DR of 25 or of 60, because each provider crawls a different part of the web and weighs links in its own way. If you report one of these numbers to a client, stick with the same provider over time. For Ahrefs' score in bulk, use the domain rating checker.
No. Domain Authority is a Moz metric, and Moz says itself that Google does not use it to rank pages. It tends to move with rankings because it is built from links, which Google does use, but Google has its own signals and never sees the DA number.
Paste up to 50 domains into the box above, one per line, keep Moz selected and press Run. The first time, the key dialog asks for your Moz API token. The results table can be sorted by any column, copied into a spreadsheet or downloaded as a CSV file.
If the other tool shows DR, Authority Score or a rank, it is a different metric from a different link index, not another measurement of DA. If it does claim to show Moz Domain Authority, look at the date: Moz recalculates DA as its index changes, and a tool that stored the number months ago shows an older value.
Partly. The Moz results include Page Authority, but this checker works on domains, so the PA it shows is the one Moz gives the domain's root address, in practice the home page. For the PA of a specific article or product page, check its full URL in Moz Link Explorer.
By earning links from more, and stronger, websites that Moz has in its index, which is the same work that helps in Google. Chasing DA for its own sake is a poor goal: a bought link can move DA while breaking Google's spam policies, and DA itself does nothing for your rankings.
In this browser only: in local storage if you choose to remember it, otherwise just for this session. Moz, Ahrefs and Semrush do not accept API calls straight from a browser, so those calls pass through a small function on gscwizard.com that forwards each request and does not store or log your key or the results. DataForSEO calls go straight from your browser to DataForSEO.
Domain Authority is a third-party estimate of how strong a site could be in Google. For your own site you do not have to estimate: Search Console has the real clicks, impressions and average positions, and its Links report lists the sites Google has found linking to you. GSC Wizard, the Search Console tool I build, keeps that performance data beyond Google's 16-month limit and turns it into reports on decaying pages, keyword cannibalization, CTR opportunities and the effect of each Google update.
Free for the 7-day trial. After the trial you need a paid plan, from €17 a month, because there is no free plan for the web app.
Ahrefs DR and UR for up to 50 domains.
Moz Spam Score or DataForSEO's backlinks spam score in bulk.
Backlinks and referring domains for any site.
Where a site ranks in Google for your keywords.
An on-page and technical check of your own site.
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