If you’ve been working on SEO for your business, chances are you’ve come across two numbers that feel strangely similar: Domain Authority (DA) and Domain Rating (DR). They both run from 1 to 100. They both suggest how “strong” your site is. And if you’ve ever compared them, you probably noticed they don’t always match.
So, what’s the difference between domain rating vs domain authority? And which one should you trust when making SEO decisions?
That’s exactly what we’re going to cover. By the end of this guide, you’ll know what DA and DR are, how they’re calculated, when to use each one, and most importantly how not to get lost chasing vanity metrics.
Why Do DA and DR Even Exist?
Let’s start with the obvious: Google doesn’t use DA or DR. These are third-party metrics created by SEO software companies.
- Moz created Domain Authority (DA) to give marketers a sense of how likely a website is to rank in Google.
- Ahrefs created Domain Rating (DR) to measure how strong a website’s backlink profile is.
Why did they do this? Because Google plays its ranking formula close to the chest. Marketers needed some way to compare websites. DA and DR filled that gap.
Think of them as thermometers for SEO health. They don’t tell the whole story, but they give you a pretty good reading of whether you’re hot, cold, or somewhere in between.
What Is Domain Authority (DA)?
Domain Authority is Moz’s metric for estimating how well a website can rank in search results.
- Scale: 1–100, with higher scores = stronger authority.
- Calculation: uses a machine learning model that considers backlink data, site structure, relevance, and other signals from Moz’s index.
- Logarithmic scale: it’s harder to move from 70 → 80 than 10 → 20.
Example: If your competitor’s site has DA 55 and yours is 30, they’re more likely to outrank you for competitive keywords unless you close the authority gap.
Think of DA as your website’s reputation score. It’s not exact, but it helps you gauge your standing in the industry.
What Is Domain Rating (DR)?
Domain Rating is Ahrefs’ metric focused on backlinks nothing more, nothing less.
- Scale: 1–100.
- Calculation: based on the number and quality of referring domains linking to your site.
- Key factor: unique domains matter more than multiple links from the same site.
Example: If your site earns backlinks from Forbes, HubSpot, and The Guardian, your DR can shoot up quickly even if your DA doesn’t move as much.
Think of DR as your website’s bench press score. It shows how much backlink “weight” you’re carrying.
Domain Rating vs Domain Authority: Side-by-Side
Here’s where the confusion clears up.
| Feature | Domain Authority (DA) | Domain Rating (DR) |
|---|---|---|
| Created by | Moz | Ahrefs |
| Purpose | Predicts ranking potential | Measures backlink strength |
| Data factors | Backlinks, link quality, relevance, ML data | Quantity + quality of referring domains |
| Focus | Holistic authority score | Purely backlink-driven score |
| Use case | Compare ranking ability across competitors | Judge backlink profile power |
Quick tip to remember: DA = ranking potential lens. DR = backlink strength lens.
Page Authority vs Domain Authority
While we’re here, let’s clear another common mix-up: Page Authority (PA) vs Domain Authority (DA).
- DA = measures entire site’s ability to rank.
- PA = measures a single page’s ability to rank.
Example: Your homepage might have DA 40. But a brand-new blog post could start with PA 10 until it earns backlinks.
Use DA for overall competitor analysis. Use PA when you’re targeting keywords with specific pages.
Why Do DA and DR Scores Differ So Much?
You might have seen a site with DR 70 but DA 30 or the reverse. That’s not an error; it’s just two tools looking at different parts of the puzzle.
- Different indexes: Moz and Ahrefs crawl the web differently.
- Different goals: DA predicts rankings; DR measures backlinks.
- Relative scoring: Both are logarithmic, meaning small gains get harder as you go up.
Takeaway: Don’t compare DA and DR like they’re the same thing. Instead, look at trends over time within each tool.
Domain Rating Factors: What Actually Moves the Needle
Ahrefs calculates DR based mostly on backlinks. Here’s what matters most:
- Referring domains: more unique domains = better DR.
- Authority of linking sites: one link from Forbes > 100 links from small blogs.
- DoFollow links: only links that pass “link juice” count.
- Distribution: diverse domains matter more than dozens of links from one site.
If you want to boost DR, aim for quality + variety of backlinks.
Domain Authority Factors: A Broader Lens
Unlike DR, Moz’s DA considers more than backlinks:
- Backlink profile quality (still the biggest factor).
- Link relevance (are they topically related?).
- Site trust signals (spammy vs credible).
- Content signals (how comprehensive, relevant, and consistent).
If you want to boost DA, focus on earning authoritative backlinks + publishing strong content + cleaning up spammy links.
How Is “Domain Rank” Different From These?
Sometimes you’ll hear “domain rank” or “domain strength” tossed around. Usually, it’s just a generic way of saying DA/DR.
But other SEO tools also have their own metrics:
- UR (Ahrefs): URL Rating = backlink strength for a single page.
- Trust Flow (Majestic): measures trustworthiness of links.
- Authority Score (SEMrush): blended metric for authority.
None of these are “the real Google score.” They’re just different lenses looking at the same picture.
How to Use DA and DR Without Losing Your Mind
Here’s how to actually use these metrics in your SEO strategy:
1. Competitor Benchmarking
- Use DA to see which competitors dominate rankings.
- Use DR to see who has the strongest backlink profiles.
2. Link Prospecting
- Target sites with higher DA/DR for guest posting or link exchanges.
- Avoid wasting time on sites with DA 1–5 unless they’re super relevant.
3. Progress Tracking
- Track DA/DR over months, not days.
- Don’t panic over 1–2 point fluctuations they’re normal.
4. Content Planning
- Use PA or UR to decide which pages need extra link support.
- Prioritize building links to money pages, not just the homepage.
Remember: Google doesn’t use DA or DR. These are proxies useful for strategy, but not goals in themselves.
Final Thoughts
At the end of the day, domain rating vs domain authority isn’t a question of which is better. They’re simply two different lenses:
- DA = shows your overall ability to rank.
- DR = shows how strong your backlink profile is.
Use them as benchmarks, not finish lines. Focus on creating great content, earning real links, and building authority in your space. When you do that, both DA and DR will rise naturally and more importantly, so will your traffic.
FAQs
Which is more important, DA or DR?
Neither. DA predicts ranking potential, DR measures backlink strength. Both matter.
Can a site have high DR but low DA?
Yes. A site can earn strong backlinks (high DR) but still lack ranking signals that Moz measures (low DA).
How do I improve DA?
Earn quality backlinks, publish valuable content, and maintain a clean internal link structure.
What’s the difference between UR and DR in Ahrefs?
UR = page-level link strength. DR = domain-level link strength.
Do DA and DR affect Google rankings?
No. Google ignores them. But improving what they measure (backlinks, authority) does help rankings.
