Domain Authority vs Domain Rating: Which SEO metric actually matters for rankings?

You’re checking your website metrics and see two different scores: a Domain Authority of 45 and a Domain Rating of 32. One tool says you’re doing great, another suggests you need serious work. Which one should you trust?

Here’s the thing: when comparing Moz Domain Authority vs Ahrefs Domain Rating, both metrics measure website strength, but they’re not measuring the same things. And if you’re blindly chasing one score without understanding what it actually represents, you’re wasting time on metrics that don’t directly impact your Google rankings.

Quick answer:

• Domain Authority (DA) is Moz’s metric that predicts ranking potential using 40+ factors including backlinks, spam signals, and site structure
• Domain Rating (DR) is Ahrefs’ metric that measures pure backlink profile strength on a 0-100 scale
• Neither is a Google ranking factor but both correlate with rankings because they measure things Google cares about
• DA is better for holistic site health tracking; DR is better for evaluating link-building opportunities
• For actual rankings, focus on earning quality backlinks from relevant sites rather than chasing either score

What is Domain Authority (and why it changed in 2025).

Domain Authority is a score Moz created back in 2004 to predict how likely your site is to rank in search results. Think of it like a credit score for websites, ranging from 1 to 100, with higher numbers indicating stronger ranking potential.

But here’s what most people miss: DA isn’t measuring your actual ranking power. It’s measuring how your site compares to every other site in Moz’s database at that moment. If your DA drops from 45 to 42 overnight, it doesn’t mean your site got weaker, it might just mean your competitors got stronger.

Moz calculates DA using machine learning that analyses over 40 different factors. The big ones include:

• Number of linking root domains
• Quality of those backlinks (a link from the New York Times counts a lot more than a random blog)
• MozRank and MozTrust scores
• Internal linking structure
• Spam Score (integrated in the DA 2.0 update)

The 2.0 update that rolled out in 2019 changed everything. Moz switched from a linear model to a neural network specifically designed to catch link manipulation schemes. According to Moz’s Principal Search Scientist, Russ Jones, the new algorithm actively devalues “link sellers, comment spam, link islands, and links from untrafficked sites.”

What this means: The algorithm can now spot those sketchy DA 40 sites selling $50 links. As of 2025, Moz updates DA scores daily rather than monthly, making it more responsive to changes in your backlink profile.

 

 

What is Domain Rating (DR) and how Ahrefs calculates it.

Domain Rating is Ahrefs’ answer to measuring website authority, but it takes a completely different approach. DR looks at one thing only: the strength of your backlink profile.

Ahrefs calculates DR similarly to how Google’s old PageRank worked. Here’s the simplified version:

1. Find all unique domains linking to your site (only dofollow links count)
2. Check the DR of each linking domain
3. Divide that DR by the number of other sites the linking domain connects to
4. Pass that “DR juice” to your site

So a backlink from a DR 80 site that links to only 10 other domains? That’s gold. A link from that same DR 80 site that links to a million other sites? Not nearly as valuable.

The scale is logarithmic. Moving from DR 10 to DR 20 is relatively easy, but jumping from DR 70 to DR 80 requires exponentially more high-quality backlinks. This matches how authority actually works in the real world.

According to Ahrefs’ own research across 218,713 domains, Domain Rating correlates strongly with keyword rankings. But correlation isn’t causation. Sites with high DR tend to rank well not because of the DR score itself, but because they have the quality backlinks that Google actually uses in its algorithm.

 

The critical differences between DA and DR.

The bottom line: DA tries to predict your ranking ability across multiple factors. DR measures one thing—how strong your backlink profile is compared to every other site in Ahrefs’ database.

Which metric actually matters more for rankings?

Neither one directly impacts your Google rankings.

Let me repeat that!!

Google doesn’t look at your DA or DR score when deciding where to rank you.

John Mueller from Google has confirmed this multiple times: “We don’t have anything like a website authority score.” Gary Illyes added back in 2016, “I don’t know of anything in ranking that would translate to ‘domain authority.'”

But here’s where it gets interesting.

A 2023 study by Onely analysed correlation between these metrics and actual Google rankings. They found Domain Authority had an average correlation coefficient of 0.16, while Domain Rating showed 0.14. These numbers might seem small, but considering Google uses hundreds of ranking factors, a 0.14-0.16 correlation is actually significant.

Why do they correlate? Because both metrics measure backlinks, and backlinks ARE a confirmed Google ranking factor. In 2016, Google’s Andrey Lipattsev explicitly stated that backlinks are “one of Google’s strongest ranking factors”.

There’s even more proof in leaked documents from 2024 that revealed Google calculates something called “siteAuthority” in their API. While Google hasn’t confirmed what this metric does, it suggests some form of site-wide authority measurement exists in their system, just not the public DA or DR scores.

So which should you use?

Use Domain Rating when:

• Evaluating potential backlink opportunities (Is this site worth reaching out to?)
• Quickly assessing a site’s link popularity
• Tracking pure link-building campaign results
• Comparing backlink profiles against competitors

Use Domain Authority when:

• Monitoring overall site health over time
• Presenting SEO progress to clients or stakeholders
• Identifying sites that might have manipulated metrics (DA 2.0 catches this better)
• Getting a more comprehensive view of site strength

The real answer: Stop obsessing over either score as a goal. Your actual goal is ranking for keywords that drive traffic and conversions. If you’re implementing proven link building techniques and creating content that naturally attracts backlinks, both scores will improve as a side effect.

How to check your DA and DR scores.

Checking Domain Authority:

1. Go to Moz’s Free Domain SEO Analysis Tool
2. Enter your domain (no need to register)
3. Click “Analyze Domain”
4. View your DA score plus linking root domains and spam score

You can also install the MozBar Chrome extension to see DA scores directly in search results.

Checking Domain Rating:

1. Visit Ahrefs’ Website Authority Checker
2. Enter your domain
3. Complete the CAPTCHA
4. View your DR, total backlinks, and referring domains

Both tools offer free limited checks. For deeper analysis and historical data, you’ll need paid subscriptions to their full platforms.

How to actually improve both metrics (the right way).

Here’s what won’t work: buying links, joining link exchanges, or submitting to 500 directories. Both Moz and Ahrefs have gotten smart about detecting these schemes.

What actually works:

1. Earn editorial backlinks from relevant sites: Guest post on established sites in your niche. But don’t just pitch garbage content, pitch something their audience actually wants. One high-quality guest post on a DR 60+ site beats 20 low-quality directory submissions.
2. Create linkable assets: Original research, comprehensive guides, tools, or data visualisations naturally attract links. When I published the original anchor text guide, it earned 47 backlinks in the first month because other sites wanted to reference the data.
3. Fix broken link opportunities: Find broken links on high-authority sites using tools, then reach out with your content as a replacement. The success rate is higher because you’re solving a problem for the site owner.
4. Build relationships before asking for links: Stop sending cold outreach emails. Engage with site owners on social media, comment on their content, share their work. When you finally ask for a link, you’re not a stranger anymore.

If you’re implementing these tactics but don’t have the bandwidth to scale them effectively, working with an SEO agency that specialises in white-hat Link Building Services can help you execute consistently while you focus on other business priorities.

Common mistakes that tank your scores (and your rankings).

Chasing the score instead of the strategy: I’ve seen businesses spend thousands buying DA 40 links that did absolutely nothing for their rankings. Why? Because Google could tell those sites existed just to sell links. Focus on earning links that actually drive referral traffic, those are the ones Google values too.

Ignoring link velocity: Gaining 100 backlinks overnight looks suspicious. Natural link growth is gradual. If you suddenly spike, expect both your DA and DR to fluctuate as algorithms adjust.

Accepting links from spammy sites: One backlink from a spam network can hurt you more than 50 good links can help. Check the DR and spam score before accepting any link. According to Moz’s DA 2.0 update, spam signals now directly impact Domain Authority calculations.

Not diversifying anchor text: If every backlink to your site uses the exact same keyword anchor text, that’s a red flag. Mix it up with branded anchors, naked URLs, and natural language. Check out these Anchor Text SEO Practices for the right balance.

Forgetting about internal links: DA considers internal linking structure. A strong internal linking strategy helps distribute authority throughout your site and improves user experience. Reference relevant articles like this Complete Link Building Guide where it makes sense for readers.

When each metric is actually useful.

Domain Authority shines in these scenarios:

1. Client reporting: DA is harder to manipulate, so when you show a client their DA increased from 35 to 42 over six months, that progress is more trustworthy than DR.
2. Competitive benchmarking: DA’s broader calculation makes it better for comparing your overall site strength against competitors. If three competitors have DA scores in the 50s and you’re at 30, you know you have work to do.
3. Identifying quality issues: Because DA incorporates spam signals, a site with a lot of backlinks but low DA probably has quality problems.

Domain Rating is more useful for:

1. Link prospecting: When evaluating whether to pursue a backlink from a specific site, DR gives you a quick, pure measure of that site’s link strength. A DR 70 site is almost always worth the effort.
2. Quick competitor analysis: Want to know which competitor has the strongest backlink profile? DR comparison gives you that answer in seconds.
3. Measuring link-building campaign success: Since DR responds faster to new backlinks and measures only that factor, it’s better for tracking whether your link-building campaigns are working.
4. The bigger picture: Stop chasing metrics, start building authority.

Here’s what nobody tells you about DA and DR: They’re tools for measurement, not goals for achievement.

I’ve consulted with sites that had DR 15 and consistently outranked DR 50 competitors. How? Better content, stronger topical authority, superior on-page optimisation, and links from highly relevant sources (even if those sources had lower DR scores).

The sites that win in search aren’t obsessing over their authority scores. They’re creating content that answers real questions, building relationships with real people, and earning links from sites that send actual traffic.

Both metrics are helpful for understanding where you stand and spotting opportunities. But the businesses that succeed in SEO in 2025 are the ones implementing comprehensive strategies: quality content, White Hat Link Building Strategies, technical optimisation, and user experience improvements.

And when you focus on these fundamentals, creating value, earning recognition, and building genuine authority in your space, your DA, DR, and most importantly your actual Google rankings will follow.