Domain Authority vs Domain Rating

Photo by Stephen Phillips - Hostreviews.co.uk on Unsplash

Domain Authority and Domain Rating are two of the most widely cited SEO metrics in backlink analysis, but they are also among the most misunderstood. A higher score can suggest a stronger, more competitive website—but neither metric is a Google score, and neither can guarantee rankings. Understanding what DA and DR actually measure helps you make better decisions about link building, competitor research, digital PR, and long-term organic search growth.

What Are Domain Authority and Domain Rating?

Domain Authority (DA) is a proprietary metric created by Moz. It estimates how likely a domain may be to compete in search results relative to other websites in Moz’s index. DA uses a logarithmic 1-to-100 scale, meaning progress becomes increasingly difficult as the score rises. Moving from DA 15 to 25 is generally easier than moving from DA 75 to 85.

Domain Rating (DR) is a proprietary metric created by Ahrefs. It measures the relative strength of a website’s backlink profile, with particular emphasis on the quantity and authority of referring domains linking to the site. Like DA, DR is reported on a 1-to-100 logarithmic scale.

Both metrics are useful shorthand for assessing off-page SEO strength. However, they are estimates generated by third-party tools—not direct measures of how Google evaluates your website.

Domain Authority vs. Domain Rating: The Core Differences

DA and DR often move in similar directions because both are influenced by backlinks, but they are not interchangeable. Each platform uses its own crawler, link index, model, and proprietary methodology.

Creator: DA comes from Moz; DR comes from Ahrefs.
Primary focus: DA is designed as a broader estimate of relative search-ranking potential, while DR is more directly focused on backlink profile strength.
Calculation method: Moz and Ahrefs use different proprietary formulas. Neither company publicly discloses every weighting factor or calculation detail.
Link data source: Each metric relies on its own backlink crawler and database. One platform may discover, retain, classify, or discount a link differently from the other.
Scoring scale: Both use a 1–100 logarithmic scale, so scores should be compared as relative indicators rather than linear grades.
Update frequency: Scores can change as each provider recrawls the web, refreshes its index, identifies lost links, or updates its model. Exact schedules and coverage can vary.

For example, a website may have a strong DR because it has earned links from many authoritative referring domains. Its DA may still be lower if Moz’s model sees a different link profile, has not indexed the same links, or weighs the domain’s broader ranking signals differently.

How DA and DR Relate to Backlinks and Website Competitiveness

Backlinks remain central to both metrics. A backlink is a link from another website to yours, while a referring domain is the unique website providing that link. Ten links from one site may add value, but earning links from ten relevant, reputable domains typically creates a more diverse and resilient link profile.

DA and DR tend to improve when a site earns editorial links from trusted, topically relevant websites. The quality of those links matters more than raw volume. A relevant industry publication, respected resource page, established supplier, or credible news site can be more valuable than dozens of low-quality directory listings or spammy blog comments.

These metrics can also indicate website competitiveness. If the pages ranking for a target keyword belong to domains with consistently strong backlink profiles, your site may need exceptional content, stronger topical relevance, better technical SEO, and high-quality links to compete. Still, page-level factors matter. A lower-DR website can outrank a higher-DR competitor with a more relevant page, superior search intent alignment, and stronger on-page optimization.

Why DA and DR Are Not Google Ranking Factors

Google does not use Moz Domain Authority or Ahrefs Domain Rating as ranking factors. Google has its own systems for evaluating links, relevance, helpful content, user intent, spam, page experience, and many other signals. DA and DR are third-party attempts to model aspects of domain-level authority based largely on observable link data.

That distinction is important. A DA 60 or DR 70 score does not guarantee rankings, organic traffic, conversions, or even a clean backlink profile. Conversely, a newer website with modest scores can rank well for focused, lower-competition searches when it publishes useful content and satisfies the query better than established competitors.

Using DA and DR for Competitor Analysis and Link Prospecting

The best use of DA and DR is comparative—not absolute. Use the same metric within the same tool to identify patterns among direct organic competitors.

Benchmark Your Search Competitors

Review the domains and individual pages ranking for your priority keywords. Look for the general range of DA or DR among the top results, then examine the factors behind those scores:

Number and quality of referring domains
Topically relevant backlinks and anchor text patterns
Content depth, keyword targeting, and search intent match
Internal linking and site architecture
Page-level backlinks to the URL that actually ranks

This approach reveals whether your challenge is primarily authority, content quality, technical SEO, or a combination of all three.

Prioritize Better Link Opportunities

For link prospecting, DA and DR can help you quickly filter outreach prospects. A higher score may indicate that a publication or resource site has an established backlink profile, but it should never be the only qualification criterion. Evaluate topical relevance, real audience engagement, editorial standards, organic visibility, and whether a link would make sense for users.

A relevant link from a smaller niche site may be far more valuable than an unrelated link from a high-scoring domain. Focus on earned editorial mentions, expert contributions, original research, partnerships, resource pages, and genuinely useful content—not score-chasing.

Why DA or DR Scores Change

Score changes are normal and do not always signal a problem. Common causes include:

New backlinks or newly discovered referring domains
Lost links, expired pages, site migrations, or redirected URLs
Changes in the authority or trustworthiness of sites linking to you
Tool index updates, crawler discoveries, and model recalibrations
Growth by competitors, which can affect a relative metric
Spam links being discounted, removed, or no longer counted by the tool

A sudden shift in DA or DR should prompt investigation, not panic. Check your referring domains, lost backlinks, redirect setup, crawlability, and recent site changes. Avoid comparing a Moz DA score directly to an Ahrefs DR score; the datasets and calculations differ, so a “gap” between tools is not inherently negative.

Practical Ways to Improve the Signals Behind DA and DR

You cannot optimize a proprietary score directly, but you can improve the underlying SEO signals both tools attempt to reflect. Build a sustainable authority strategy around quality, relevance, and technical consistency.

Create link-worthy assets: Publish original research, useful guides, calculators, case studies, templates, and expert-led resources that others want to cite.
Earn relevant referring domains: Conduct thoughtful outreach to publishers, partners, industry organizations, and resource curators with a legitimate reason to reference your content.
Reclaim lost link equity: Fix broken pages, use accurate 301 redirects during URL changes, and recover unlinked brand mentions where appropriate.
Strengthen internal links: Connect important pages with descriptive, contextually relevant anchor text so authority and users can flow through your site.
Improve technical SEO: Resolve crawl errors, duplicate content, slow-loading pages, redirect chains, and indexation issues that limit content performance.
Publish consistently useful content: Build topical authority by covering the questions, problems, and commercial needs of your audience more effectively than competing sites.

Frequently Asked Questions

What is the difference between Domain Authority and Domain Rating?

Domain Authority is Moz’s relative estimate of a domain’s ability to compete in search results, while Domain Rating is Ahrefs’ backlink-focused measure of a website’s link profile strength. They use different indexes and proprietary calculations, so their scores should not be treated as equivalent.

Is Domain Authority or Domain Rating a Google ranking factor?

No. DA and DR are third-party SEO metrics, not Google ranking factors. They can be useful indicators for competitive research, but Google does not use these specific scores to rank pages.

Which metric is better for evaluating a website’s backlink profile?

DR is specifically centered on backlink profile strength, making it useful for link-focused analysis. DA can provide broader competitive context. For the most reliable assessment, review either score alongside referring domains, link relevance, traffic quality, page-level links, and spam indicators.

Why is my Domain Rating high but my Domain Authority low?

This can happen because Ahrefs and Moz use different crawlers, link databases, and models. Ahrefs may recognize stronger or more numerous referring domains, while Moz may evaluate the available link data differently. It does not automatically indicate an SEO problem.

How can I improve my website’s DA and DR?

Improve the underlying signals by earning relevant editorial backlinks, publishing authoritative content, recovering lost links, maintaining clean redirects, strengthening internal linking, and avoiding manipulative link schemes. Sustainable SEO improvements matter more than pursuing a score alone.

Ready to see how your site stacks up? Run a free SEO audit and get a clear picture of what's holding your rankings back.