What Is Domain Authority, and How Does It Impact SEO?

Domain authority is one of the most talked about and often misunderstood metrics in SEO. Some people think it is a direct ranking factor used by Google or other search engines. Others say it does not matter at all.

In this blog, you will learn what moz domain authority really means, how the score works, and how it impacts your site's SEO. By the end, you will clearly know how to use DA properly in your SEO analysis.

What Is Domain Authority?

Domain Authority (DA) is an SEO metric developed by Moz. It is a search engine ranking score that predicts how likely a website is to rank on search engine results pages (SERPs). It ranges from 1 to 100. 

This score helps marketers quickly assess a website's strength during SEO analysis. But remember, DA is not a direct ranking factor used by Google. It is a relative metric to check your website’s search performance. The high DA score means greater chances of a site ranking in the search engines.

How Is Domain Authority Calculated?

The following factors are considered when calculating the DA score.

• Backlink Profile: The total number of inbound links pointing toward your site is considered. More quality backlinks generally mean a stronger score. 

• Referring Domains: It is the number of unique domains linking to your site. If you get 10 links from different sites, it provides far more value than getting 10 links from a single site.

• Root Domain Strength: The overall age, history, and trustworthiness of your base domain.

• Linking Root Domains' Authority: Links from high DA websites carry significantly more weight than links from low-authority sites.

What Is a Good Domain Authority Score?

There is no fixed "good" DA score. It is a relative metric. A DA of 30 can be great in one niche and weak in another. To give you a better idea, we have analyzed the DA score of over 100 websites in 6 different niches using our free domain authority checker tool.

In the “SEO” niche, we searched for the keyword “what is SEO” and checked the DA of top-ranking sites. Here is what we found:

Here, the DA score varies from 83 to 95. So the average DA score is very high in this niche. Similarly, in the health niche, we searched for the keyword “healthy foods for liver patients”. And here are the results of the website DA scores for the top 11 domains:

The DA scores of the top ranking sites in this niche are relatively low compared to the above mentioned. A site with as low as 24 DA is ranking on the first page here. And the DA of most of the sites is around 50 to 60+. Based on our research, here is the average Moz domain authority of top ranking sites in other niches.

This is not the absolute data, but it's enough to take an idea of average DA scores in several niches.

How Domain Authority Impacts SEO Performance

Although domain authority does not directly impact the search rankings of your site, it does show how strong your website is. And that strength shows up in real results. Here are some important effects of domain authority on the SEO performance of your sites:

• Higher Search Rankings

• Faster Page Indexing

• More Natural Backlinks

• Easier Keyword Competition

• Better Algorithm Stability

Now we will discuss them one by one in detail.

1) Higher Search Rankings

Websites with higher domain authority tend to rank better than competitors targeting the same keywords in the same niche. Let's say two websites write about the same topic. They used the same keyword, and the content quality is also similar. Which one ranks higher? 

Most probably, the one with the stronger domain authority. Google has seen that site before. It has links from other trusted sites. So Google ranks it up. 

2) Faster Page Indexing

Search engines more frequently crawl websites with higher domain authority. So when you publish a new article on a high DA site, Google finds it fast and may index it immediately. But on the other hand, the new pages on the websites with low domain authority can sometimes take longer to appear in search results. So, it directly impacts your organic traffic.

3) More Natural Backlinks

When your DA grows, your content starts ranking higher. So it is visible to a lot of users. And more visibility means more people read your content, reference it, and link back to it organically.  

Those organic links push your DA a little higher. This brings in more ranking, more readers, and more organic backlinks. So it automatically enhances the search engine rankings of your sites eventually. 

4) Easier Keyword Competition

Some keywords are really hard to rank for because a lot of credible websites are targeting them. So it is difficult for a low authority site to rank on such highly competitive keywords. Google does not trust it yet. So even if the content is good, it will be difficult to rank. 

However, websites with strong domain authority scores have a better chance of ranking for high-volume, competitive keywords. That's because search engines already trust them.

5) Better Algorithm Stability

Google updates its algorithm multiple times a year. These updates affect the rankings of websites based on the changes in the algorithm. Low authority sites are not so stable. So, one update can wipe out months of work. And getting back to where they were takes a long time.

Sites with strong domain authority usually survive these updates better. They have backlinks from many trusted sources. Google already knows them well. So even if rankings shift a little, they recover faster.

Final Words

Domain authority is not a direct ranking factor. But it is still one of the most useful metrics in SEO. It shows the ranking potential of a site compared to its competitors. 

A high domain authority means the site has a strong backlink profile, good off-page and technical SEO, and valuable pages for the users. So whenever you see a site with strong authority, it means the site has a strong overall SEO and is worth linking to if required.

Frequently Asked Questions

1. How to Check Domain Authority?

It is very easy with our website domain authority checker tool. Go to the tool, paste the URL of your site, and click the “Check Domain Authority” button. The tool will provide you with DA scores, PA, spam score, and domain age within seconds.

2. How Long Does It Take To Increase DA?

There is no fixed timeline. For a new website, moving from DA 1 to DA 20 can take 3 to 6 months with consistent link building. Going from DA 30 to DA 50 can take a year or more. It all depends on how fast you earn quality backlinks from strong, unique domains.

3. What Is the Difference Between "DA" and "DR"?

DA (Domain Authority) is a metric by Moz. DR (Domain Rating) is a metric by Ahrefs. Both measure your site's backlink strength. But they use different algorithms and data sources.

4. Can a Website With a Low DA Rank on Google?

Yes, absolutely. Here is an example to see how. A DA of 25 might seem low compared to “The New York Times Cooking” in the food blogs. But if you are in a very specific niche (e.g., "Vegan Air-Fryer Recipes for Beginners"), a DA 25 can easily outrank a DA 80 giant if your content is more relevant and specialized.