Moz DA vs Ahrefs DR: What Each Score Really Tells You

Moz's Domain Authority predicts how likely a domain is to rank; Ahrefs' Domain Rating measures the raw strength of a backlink profile. Use DR to vet link prospects, use DA to benchmark against SERP competitors, and never treat either as a Google ranking factor, because Google uses neither.

You probably landed here after seeing two very different numbers for the same website. That gap is not a bug in either tool. It is the predictable result of two companies answering two different questions with two different link indexes. This guide breaks down what each metric measures, why they diverge, which one fits which job, and what you should actually track when both scores fall short.

Key Takeaways

• Google does not use Moz DA or Ahrefs DR in its ranking systems. Both are third-party estimates, not Google signals.
• DA is a machine-learned prediction of ranking ability; DR is a description of backlink-profile strength. They answer different questions.
• DR is usually the better first filter for link prospecting. DA is usually the better lens for comparing yourself to direct SERP competitors.
• A DA 41 and a DR 72 for the same domain can both be "correct," because the metrics use different crawlers, indexes, and formulas.
• Both scores ignore what matters most in 2026: page-level strength, topical relevance, real traffic, and content quality.

What Is Moz Domain Authority (DA)?

Moz Domain Authority (DA) is a 0–100 score that predicts how likely a website is to rank in search results, based on a machine-learned model of its inbound link profile. Moz designed it as a comparative metric: a DA of 45 means little in isolation, but it means a lot next to the DA of the six sites outranking you.

Moz explains the metric in detail in its own Domain Authority documentation, and it remains the most recognized proxy score in the industry. It is also the older of the two metrics by a wide margin.

A Short History of DA

DA was first introduced by Moz in 2004 as a way to predict how well a website would rank in search engine results pages. Several updates since then shaped the metric you see today:

• 2011: Moz introduced the concept of "Linking Root Domains," so multiple links from the same site no longer counted repeatedly. This blunted crude link spam and made DA more reliable.
• 2015: Moz added machine learning to the model, improving its ability to separate quality links from manipulative ones.
• 2019: The DA 2.0 update rebuilt the metric around a machine-learned model that folds in signals like Spam Score and link-quality patterns.
• 2025: Moz continues to surface DA for free via MozBar, which was updated in April 2025 and gives users access to Domain Authority and Page Authority, while Moz Pro subscribers also see Spam Score.

What Goes Into the Score

DA draws on link quantity, link quality, linking-root-domain diversity, spam signals, and historical link patterns. Because the model is trained to predict ranking outcomes rather than simply count links, DA behaves like a forecast. That makes it broader than DR, and, in some situations, harder to interpret. Off-page signals are only one leg of the stool; if you want the full picture of how link authority fits alongside content and technical health, our breakdown of on-page, off-page, and technical SEO maps out where each one pulls its weight.

What Is Ahrefs Domain Rating (DR)?

Ahrefs Domain Rating (DR) is a 0–100, logarithmic score that measures the strength of a website's backlink profile. It was first introduced in 2016 as an alternative to other domain authority metrics, and it deliberately stays narrow. DR looks at three things:

1. How many unique referring domains link to the site
2. The DR of those referring domains
3. How many other sites those referring domains link out to

That is essentially it. DR intentionally excludes traffic, spam signals, domain age, content quality, and every other non-link variable. Ahrefs is transparent about this in its own Domain Rating explainer, and the narrowness is a feature, not a flaw. DR asks one clean question, how strong does this backlink graph look?, and answers it consistently.

The scale is logarithmic, which means the climb gets steeper as you go. Moving a site from DR 20 to DR 30 is a manageable project. Moving from DR 70 to DR 80 requires a dramatically larger jump in referring-domain quality and quantity. Keep that in mind before you set a "reach DR 60 by Q4" goal for a DR 52 site.

Moz DA vs Ahrefs DR: Key Differences at a Glance

If you compress the whole debate into one line, it is this: DA is a prediction, DR is a measurement. Moz tries to forecast ranking potential across many signals; Ahrefs describes one signal, links, with more depth and freshness.

Dimension	Moz Domain Authority (DA)	Ahrefs Domain Rating (DR)	Practical consequence
Core question	How likely is this domain to rank?	How strong is this backlink profile?	The scores answer different jobs, so they legitimately disagree
Model type	Machine-learned, multi-signal prediction	Link-graph-based, logarithmic measurement	DA shifts when the model retrains; DR shifts when links change
Spam signals	Yes, Spam Score is baked into the model	No spam filtering in the score itself	A spammy site can show a high DR but a modest DA
Traffic data	Not a direct input	Not an input at all	Neither score proves a site gets real visitors
Launched	2004 (major reworks in 2011, 2015, 2019)	2016	DA has two extra decades of iteration and industry adoption
Best use	Benchmarking against direct SERP competitors	Filtering and vetting backlink prospects	Pick the metric that matches the task, not the higher number

Why the Same Domain Gets Two Different Scores

Practitioners routinely describe running one domain through both tools and getting wildly different results, a DA of 41 in Moz and a DR of 72 in Ahrefs on the same day is a commonly cited example. Three things drive the gap:

• Different crawlers and indexes. Ahrefs claims an index of 44.8 trillion links, and its crawler is frequently cited as the most active non-Google crawler on the web. Moz's index is smaller and, reviewers report, updates on a slower cycle. Each tool literally sees a different web.
• Different math. Ahrefs weights referring-domain counts and their outbound link dilution. Moz runs a trained model that penalizes spam patterns and rewards link diversity.
• Different objectives. A site with thousands of links from a handful of high-DR domains can post a strong DR but only a moderate DA. A site with fewer links from a diverse, trusted set of domains can show the reverse.

Why DA 50 and DR 50 Are Not the Same Number

Both scores run 0–100, which tempts people into treating them as interchangeable. They are not. A DR 50 says the backlink graph is mid-strength on Ahrefs' logarithmic curve. A DA 50 says Moz's model predicts solid ranking potential relative to the rest of the web. Comparing your DA to a competitor's DR, or averaging the two, produces a number that means nothing. Compare DA to DA and DR to DR, always within the same niche.

Does Google Use Moz DA or Ahrefs DR?

No. Google does not use Domain Authority or Domain Rating anywhere in its ranking systems. This is not speculation: Google's own ranking systems documentation describes many signals working mostly at the page level, with some site-wide signals layered in. Moz itself states plainly that Google does not factor DA into rankings, and Ahrefs notes that Google representatives have repeatedly denied "domain authority" as a ranking factor.

Google Ranks Pages, Not Domain Scores

This distinction matters more than most of the DA-vs-DR debate. Google's systems evaluate individual pages against individual queries. PageRank, which does use links, is one component among many, and relevance remains primary. A strong domain with a thin, off-topic page loses to a weaker domain with a genuinely better page all the time.

So think of DA and DR the way you would think of two credit scores from two different bureaus. Both are useful shorthand. Neither is the lender's internal model, and the lender, Google, is not consulting either one.

What That Means for Your Strategy

Treat both metrics as inputs, never as KPIs. If your monthly report celebrates a two-point DA gain while rankings and traffic stay flat, you are optimizing the proxy instead of the outcome. Rankings, qualified traffic, and revenue are the scoreboard; DA and DR are weather reports.

When to Use DR, When to Use DA

Each metric earns its keep on a specific job. Here is the honest division of labor:

Task	Better metric	Why it fits	Where it fails you
Vetting backlink prospects	Ahrefs DR	A link-centric score is the honest tool for judging link-graph strength, and the index is large and fresh	Sorting a spreadsheet by DR alone means overpaying for irrelevant, high-score links
Benchmarking vs SERP competitors	Moz DA	Moz designed DA as a comparative score against similar sites in your category	Comparing your niche site to a giant publisher's DA tells you nothing useful
Spotting toxic or spammy sites	Moz (via Spam Score)	Spam signals are baked into Moz's ecosystem; DR has no spam layer	Spam Score is a flag for review, not an automatic verdict
Tracking competitor link velocity	Ahrefs DR + referring domains	Reviewers report Ahrefs surfaces new links within days, versus a roughly monthly cycle for Moz's Link Explorer	DR alone hides which pages are earning the links
Reporting authority trends to clients	Either, used consistently	Directional movement over 6–12 months is meaningful	Month-to-month wobbles are mostly index noise

DR for Link Prospecting

When you have 300 outreach candidates and need a first cut, DR is the cleaner filter. It answers the narrow question, is this site's link profile strong? without a predictive model muddying the signal. But Ahrefs' own guidance warns against judging any site on site-wide authority alone. After the DR filter, check the prospect's own backlinks, its outbound-link habits, its content quality, its organic traffic, and its topical fit. A DR 75 site that links out to 40 sponsors per post passes almost nothing worth having.

DA for Competitive Benchmarking

DA shines when the comparison set is right. Pull the DA of the six domains that repeatedly outrank you for your target keyword cluster and you get a genuinely useful gauge of the gap. We did exactly this kind of honest self-benchmarking when we audited our own site and published the results, the point was never the score itself, but where the score said to look next. Commonly cited bands put 0–30 as low, 30–50 as average, 50–70 as strong, and 70+ as elite, but those labels only mean something inside your own niche.

What Both Metrics Miss

Even used correctly, DA and DR share blind spots big enough to sink a link-building budget. Four stand out.

Page-Level Strength

Google's documentation confirms ranking works primarily at the page level, and Ahrefs notes Google cares more about the strength of the linking page than the linking domain. A link from a strong, relevant page on a DR 40 site can beat a link from an orphaned page on a DR 80 domain. Before you celebrate a placement, look at the actual page: its own links, its internal linking, its indexation. On your own side, page-level fundamentals are checkable in seconds, run any URL through a free on-page SEO scorer and you will often find the ranking bottleneck has nothing to do with domain scores.

Topical Relevance

Neither metric knows what a site is about. A DR 80 casino site is not a better link for your bakery-supply store than a DR 35 baking blog. Relevance is the signal Google's systems reward and the one no single-number score can encode. Judge every prospect by whether its audience overlaps yours.

Real Traffic

DR excludes traffic entirely, and DA does not use it directly. Plenty of high-score domains are link farms with impressive graphs and zero human readers. A link that no one ever sees can still pass some equity, but it will never send a customer.

Content and On-Page Quality

A domain score says nothing about whether the linking page, or your own page, is well built. Sloppy titles, missing headings, and duplicated meta tags quietly cap what any amount of authority can deliver. A quick pass with a meta tag and heading checker on your key pages costs nothing and frequently surfaces easier wins than another month of outreach.

How to Evaluate a Backlink Opportunity in 2026

Here is a workflow that uses DA and DR for what they are good at, then goes past them:

1. First filter with DR. Set a floor appropriate to your niche, not an arbitrary "DR 50+" rule copied from a forum.
2. Sanity-check with DA and Spam Score. A big DR/DA gap or a high Spam Score is a prompt to look closer, not an instant rejection.
3. Check topical fit. Would this site's readers plausibly become your readers? If not, stop here.
4. Verify real organic traffic. Look for stable or growing organic visibility, not a spike-and-crash chart.
5. Inspect the linking page. Does it rank for anything? Does it have its own links? How many external links does it already carry?
6. Read the content. Thin, obviously mass-produced pages devalue every link on them. The difference between genuinely useful pages and filler is exactly the difference we unpack in our guide to AI versus human content for SEO, and it applies to the sites linking to you as much as to your own blog.
7. Price against the checklist, not the score. A modest-DR site that passes steps 3–6 is usually worth more than a high-DR site that fails them.

This takes minutes per prospect and prevents the classic failure mode: a spreadsheet sorted by DR, a five-figure outreach budget, and a link profile full of authority that never converts into rankings.

Can You Improve Your DA or DR, and Should You Try?

You can move both scores, but chase the causes, not the numbers. The inputs that lift DA and DR are the same inputs that lift rankings:

• Earn links from relevant, trafficked sites. Guest contributions, original data, and genuinely citable resources beat volume plays. Quality referring domains move both metrics.
• Publish content worth linking to. No score rises for long on a thin content base. Depth and topical coverage attract the links the metrics count.
• Strengthen internal linking. Internal links distribute authority across your site and lift the pages that need it. Doing this from a real crawl of your own site, the way our internal linking feature works, beats guessing which pages should point where.
• Prune genuinely toxic patterns. Moz's Spam Score can flag risky neighborhoods in your profile. Review flags manually before disavowing anything.

Set the goal as "outrank these six competitors for this keyword cluster," and let DA and DR drift upward as a side effect. That framing keeps the budget pointed at outcomes.

DA and DR in the Age of AI Search

AI Overviews, ChatGPT, and Perplexity have changed what "authority" buys you. These systems cite passages, clear, self-contained answers on relevant pages, far more than they reward raw domain scores. A well-structured answer on a mid-authority site gets quoted while a vague page on a DR 85 domain gets skipped.

That shifts the calculus in two ways. First, links still matter, because they influence which sources the underlying retrieval systems trust, so DR-informed prospecting is not obsolete. Second, the marginal dollar increasingly does more in content structure than in one more link. Quotable definitions, direct answers high on the page, and tight heading hierarchies are what answer engines lift. It is the same discipline behind well-checked drafting, our AI article writer runs 36 checks per draft precisely because extraction-ready structure is now a ranking and citation asset, not a nice-to-have.

Neither Moz nor Ahrefs' domain score measures any of this. Treat AI-search visibility as a separate track you monitor directly, not something you infer from DA or DR.

Moz DA vs Ahrefs DR Pricing: What Access Actually Costs

You cannot use either metric seriously without the tool behind it, so cost is part of the comparison. Figures below are as reviewers and comparison pages list them; check current pricing before you buy.

Tier	Moz Pro	Ahrefs	Who it suits
Entry	Standard, listed at $49/month billed annually, one user, basic rank tracking, limited crawls, Link Explorer access	Lite, listed at $129/month, one user, full access to the backlink and keyword databases, higher crawl limits	Solo marketers under a $150/month budget: Moz is cheaper, Ahrefs delivers more raw data per dollar
Mid	Medium, listed around $179/month, more campaigns and tracked keywords	Standard, listed around $249/month, adds batch analysis credits and historical data	Small teams; reviewers note the data-access gap between the tools persists at this tier
Team scaling	Higher tiers described as more inclusive of multiple users	Reported per-seat pricing of $60/month per additional user	Agencies: Ahrefs' seat costs can escalate quickly across a large team
Free access	MozBar (updated April 2025) shows DA and Page Authority at no cost	Limited free tooling for site owners	Anyone who just needs to check a score occasionally

Two cost realities worth noting. Reviewers report that Ahrefs' batch-analysis credits can burn fast during heavy competitor research, throttling workflows on the Standard plan. And the underlying database gap is real: comparison pages cite roughly 28.7 billion keywords in Ahrefs' database versus about 1.25 billion in Moz's, which affects long-tail discovery far more than any authority score does.

If a paid seat is not justified yet, that is a legitimate position. Plenty of small sites get everything they need from free tooling for a year or more, our guide to free versus paid SEO tools draws the line on when a subscription actually pays for itself.

What You Should Track Instead of a Domain Score

Domain scores are inputs. These are outcomes:

• Rankings for the keywords you actually target, tracked weekly per market, not a vanity "average position."
• Qualified organic traffic, sessions from queries with commercial or clear informational intent.
• Referring domains gained on your money pages, not just sitewide totals.
• Conversions and revenue attributable to organic, which is the only number a business owner ultimately cares about. If SEO reporting feels like reading tea leaves, our plain-English SEO roadmap for business owners explains what a healthy program looks like without the jargon.
• Citations in AI answers for your key questions, an increasingly distinct channel from classic rankings.

The mix shifts by business model. A content site lives on rankings and traffic; a store lives on revenue per landing page, which is why e-commerce SEO for Shopify and BigCommerce centers on category and product-page performance rather than any domain-level number. Whatever the model, the principle holds: track the scoreboard, glance at the weather report.

The Verdict: Two Tools, Two Jobs, Zero Google Signals

Neither metric wins outright, because they were never playing the same game. DR is the sharper instrument for link prospecting: narrow, fresh, and honest about being a pure link-graph score. DA is the sharper instrument for competitive benchmarking: a trained prediction, spam-aware, and built for comparisons within a niche. Both are useful shorthand, both are third-party estimates, and both are invisible to Google's actual ranking systems.

The teams that get hurt by these metrics are the ones that use them interchangeably, pricing links by DA, benchmarking competitors by DR, or reporting either number as if it were progress. The teams that benefit use each score as a two-second filter, then do the real work: relevant links, strong pages, and content structured for both classic search and AI answers. That philosophy, measure what matters, then execute, is the whole reason SearchBlueprint exists.

FAQs

Is Moz DA or Ahrefs DR more accurate?

Neither is "more accurate", they measure different things. DR is a precise description of backlink-profile strength based on Ahrefs' link index. DA is a machine-learned prediction of ranking ability that also weighs spam signals. Judge each against its own job, not against the other.

Why is my DR much higher than my DA?

A high DR with a lower DA usually means your raw link graph looks strong, often thanks to many links from a small set of high-DR domains, while Moz's broader predictive model is less impressed, possibly due to limited domain diversity or spam-pattern signals. It is a clue to diversify your referring domains, not a verdict.

Does Google use Domain Authority or Domain Rating to rank websites?

No. Google's ranking systems documentation describes signals that work mostly at the page level, and both Moz and Ahrefs acknowledge their scores are not Google ranking factors. PageRank uses links, but it is Google's own system, not either third-party metric.

What is a good DA or DR score?

Commonly cited bands run 0–30 (low), 30–50 (average), 50–70 (strong), and 70+ (elite), but the only comparison that matters is against the domains outranking you for your target keywords. A DA of 35 can be excellent in a small local niche and weak in enterprise software.

How often do DA and DR update, and how often should I check?

Both metrics update regularly, Ahrefs recalculates DR frequently as its crawler finds new links, while Moz's updates run on a slower cycle. Checking monthly is enough. Day-to-day movements are mostly index noise, and short-term dips rarely mean anything about your rankings.

See What a Score-Free SEO Report Looks Like

Domain scores make a fine footnote and a terrible headline. If you want to see reporting built around rankings, traffic, and competitor gaps instead of a single vanity number, browse a sample SEO report and talk to the team about benchmarking your site properly. In the meantime, keep using DR to filter link prospects and DA to size up SERP rivals, the Moz DA vs Ahrefs DR debate ends the moment you give each score its own job.

Resources / References

1. Domain Authority documentation
2. Domain Rating explainer
3. ranking systems documentation

Sources

• Moz DA vs Ahrefs DR: Which One Actually Matters? (2026)
• Is Moz's DA same as Ahrefs DR? : r/SEO
• Ahrefs vs Moz in 2026: A Practitioner's Comparison - Spike AI
• Moz Domain Authority Vs. Ahrefs Domain Rating
• Domain Authority (DA) & Domain Rating (DR) Checker