Domain Authority: What It Is and How to Improve It

1. What Is Domain Authority (DA)?

Domain Authority (DA) is a proprietary search ranking score developed by Moz, the SEO software company. It predicts how likely a domain is to rank in search engine results pages (SERPs) relative to other domains. The score runs on a logarithmic scale from 1 to 100 — the higher the score, the greater the predicted ranking ability.

Moz introduced DA as a way to quantify the overall strength of a website's link profile. A new website starts at DA 1 (or near zero). As it accumulates high-quality backlinks over time, the score rises. Major established domains like Wikipedia, Reddit, or the New York Times sit in the DA 90+ range.

Important: DA is calculated and maintained by Moz, not Google. It is not a factor in Google's actual ranking algorithm. However, because high-DA sites typically have strong real-world authority backed by thousands of quality backlinks, there is a strong correlation between DA and search performance.

2. Domain Rating (DR) vs Domain Authority (DA) vs Authority Score

Multiple SEO tools have developed their own domain-level authority metrics. They are similar in concept but use different data and methodologies, so the scores are not directly comparable across tools.

The key takeaway: do not compare a Moz DA score directly to an Ahrefs DR score — they use different indices and scales. What matters most is using one metric consistently to track your own progress over time and to benchmark against direct competitors in your niche.

3. How Domain Authority Is Calculated

Moz calculates DA using a machine learning model that incorporates dozens of signals from their web index. The primary inputs include:

4. What Is a Good DA Score?

There is no universal "good" DA score in isolation — it is entirely relative to your industry and direct competitors. A DA of 30 might be very competitive in a local niche, while DA 70 might be average for a national media publisher. Here is a general interpretation guide:

5. Why DA Matters for SEO (Correlation, Not Causation)

DA matters because the inputs that raise DA — high-quality backlinks from authoritative and relevant domains — are the same inputs that improve rankings in Google. DA is a proxy metric that reflects the health of your link profile.

Studies consistently show a positive correlation between higher DA and better average rankings. This is not because Google uses DA as a signal, but because sites with high DA have typically earned it through the same activities that Google rewards: creating excellent content that earns genuine links from reputable sources.

Where DA is especially useful is in competitive analysis. Before targeting a keyword, compare the DA of the pages currently ranking in the top 5. If they all have DA 70+ and yours is DA 30, you know you will need to significantly strengthen your authority before competing organically for that term.

6. 8 Ways to Improve Your Domain Authority

Improving DA is a long-term process — it typically takes months to see significant movement. These are the most effective strategies:

7. How to Check Your Domain Authority with Rank Crown's Site Explorer

Rank Crown's Site Explorer provides a comprehensive view of any domain's backlink profile, domain rating, referring domains, and organic search performance — all the data you need to benchmark your authority and track improvement over time.

1. 1

   Enter any domain

   Type your domain (or a competitor's) into Rank Crown's Site Explorer. You'll see the Domain Rating, total backlinks, and referring domains immediately.

2. 2

   Analyze the backlink profile

   Review which pages attract the most backlinks, what anchor text is most common, and which referring domains are linking to you. Identify your strongest and weakest link sources.

3. 3

   Compare against competitors

   Enter competitor domains to benchmark your DR against them. This shows you the authority gap you need to close to rank competitively for shared target keywords.

4. 4

   Monitor progress over time

   Track your DR trend month-over-month. A steadily rising DR alongside growing referring domains confirms your link-building efforts are working.

8. Common Misconceptions About Domain Authority

9. DA vs Actual Google Rankings

Google does not use DA in its algorithm — that point cannot be stressed enough. Google uses its own proprietary signals, the most important of which include: the quality and relevance of content (E-E-A-T), the quality and quantity of backlinks (PageRank), on-page technical factors, user experience signals, and page experience (Core Web Vitals).

In practice, pages with high DA often rank well because they have done the underlying work that both raises DA and pleases Google: earning real editorial links, publishing high-quality content, and maintaining a healthy, fast, and accessible website. DA is simply measuring the same underlying signals that Google cares about.

The most actionable way to use DA in your SEO strategy is as a competitive intelligence metric. Before targeting a keyword, use Rank Crown's Keywords Explorer to see the Domain Rating of pages ranking in the top 5. If the average DR of ranking pages is 60 and yours is 25, either focus on lower-competition keywords in the short term, or execute an aggressive link acquisition campaign before attacking that keyword.