Is Domain Authority Important? Everything You Need to Know About DA

domain authority score

Domain Authority (DA) is a metric created by Moz that measures the authority of a website. It is one of the most important metrics used by SEO experts to measure the success of their campaigns. DA is determined by looking at a number of factors, including the quantity and quality of links to your website.

A high Domain Authority score means that your site is seen as an authority in your industry. In this article, we will discuss what Domain Authority is, why it’s important, and how you can improve your score. Let’s get started!

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What Is Domain Authority?

Domain Authority is a metric created by Moz that measures the strength of a website’s backlink profile. The score is calculated on a logarithmic scale from 0 to 100, with higher scores indicating greater authority. DA is based on data from Moz’s link index, which contains over 4 trillion links.

It is based on data from a wide range of sources, including search engine rankings, link profiles from top competitors, and the quantity and quality of links to your own site. Factors that are taken into account when calculating Domain Authority include both on-page factors (such as content and site structure) as well as off-page factors like linking root domains and the number of links.

The metric is designed to give you an idea of how strong your website is in comparison to others in your industry. It is not a static number, but rather it changes over time as your website’s link profile evolves.

Is Domain Authority important? Domain authority measures

Why is Domain Authority Important?

Domain Authority is important because it is a strong indicator of a website’s ability to rank in search engines. A high DA score means that your website is more likely to rank for competitive keywords, while a low DA score indicates that your site may struggle to rank for even long-tail keywords.

It’s important to keep in mind that Domain Authority is just one of many factors that determine search engine rankings. However, it is a good metric to use as a general indicator of your website’s SEO health.

It helps you to benchmark your website against competitors in your industry, and it can also be useful for measuring the effectiveness of your SEO campaigns. You can track your DA score over time to see if your efforts are having a positive impact on your website’s authority.

How is Domain Authority calculated?

Domain Authority is a number that is calculated by looking at multiple factors, including the number of root domains that link to your site and the total number of links on your site. This score can be used to compare websites or track how strong a website is over time. It is not a google ranking metric, but it is a good indicator of how well a site will perform in search engine result pages (SERPs).

To calculate Domain Authority, Moz uses a machine learning model that looks at dozens of factors, including link profile and on-page signals. This model is constantly being updated as Google changes its algorithm, so Domain Authority scores may fluctuate over time.

The Domain Authority 2.0 update in early 2019 introduced a computer-learning algorithm’s predictions regarding how frequently Google uses a domain in its search results to compute a domain’s DA score. If domain A is more likely to show up in a Google SERP than domain B, then we would expect the DA for domain A to be higher than that of domain B.

Because DA is based on machine learning computations, your search engine ranking score will frequently change as new data points become available and are added to those calculations. For example, if Facebook were to acquire 1 billion additional links, the DA of every other site would drop proportionately as compared to Facebook’s. As Facebook becomes more popular, it gains more links from other high-quality websites. This leaves less room for other websites with fewer links to rank high on the scale. As a result, increasing your score from 20 to 30 is far easier than increasing it from 70 to 80. As a result, rather than relying on Domain Authority as an absolute number, it’s preferable to utilize it as a comparative measure.

How can I check my site’s Domain Authority?

You can check your website’s Domain Authority for free using Moz’s Link Explorer tool. Simply enter your website’s URL and hit “Search.” Within seconds, you’ll see your DA score, along with other useful information, such as the number of links pointing to your site and your site’s spam score.

The MozBar is another free tool from Moz that allows you to check the DA of any website, including your own. The MozBar is a browser extension that displays DA scores right in your search results, so you can quickly and easily compare the authority of different websites.

What is a good or average Domain Authority score?

Domain Authority scores range from 0 to 100, with higher scores representing more authoritative websites. There is no “good” or “bad” DA score – it’s only relevant when comparing your site’s score to that of your competitors. For example, if you’re in a competitive industry where most websites have DA scores above 50, then a score of 30 could be considered average.

The specific cutoff points for what is considered a high or low DA score will depend on the industry and niche that you’re working in. Generally speaking, however, sites with a higher DA score will generally perform better than those with lower scores when it comes to ranking in SERPs.

The DA score of your website can change over time based on a number of factors, including the growth and health of your link profile. When trying to improve your DA score, focus on building high-quality links from authoritative sites that are relevant to your business or niche.

You can also use Moz’s Link Explorer tool to analyze which sites are linking back to you and which sites are linking to your competitors. By focusing on ways to get links from these high-quality websites, you can help improve your site’s DA score over time.

How Do You Improve Your Domain Authority?

There are a number of strategies that you can use to improve your site’s Domain Authority. Some of the most effective tips include:

1) Pick a good domain name

A domain name is the first step to a strong website. It’s important to choose a domain name that is short, catchy, and easy to remember. The domain name should also be relevant to your business or niche. You can use a tool like Namecheap’s Domain Name Generator to help you find a good domain name for your website.

2) Publish high-quality content

Google looks at the quality of your content when determining your DA score. As such, it’s important to focus on creating well-written, informative articles that are relevant to your niche. If you’re not a strong writer, consider hiring a professional to help you create high-quality content for your website.

3) Optimize your on-page content

In addition to writing high-quality content, it’s also important to optimize your on-page content for SEO. This includes things like using the right keyword density, adding alt text to your images, and using internal linking. The MozBar can help you analyze your on-page SEO, so you can make any necessary changes to improve your page rank.

4) Get links from high Domain Authority websites

One of the most effective ways to improve your site’s DA score is to get links from high Domain Authority websites. This can be done by guest blogging, writing informative articles, or creating helpful resources that other website owners will want to link to.

5) Improve your site’s internal linking

Internal linking is a vital part of any website, and it can also help improve your site’s DA. By linking to other pages on your site, you’re not only making it easier for users to navigate your website, but you’re also helping search engines understand your site’s structure and content.

6) Promote your content

Another great way to improve your site’s DA is to promote your content. This can be done by sharing your articles on social media, participating in forums and discussion boards, and reaching out to other websites in your niche to ask for links.

7) Remove toxic and bad links.

If your site has a large number of toxic or spammy links, this can negatively impact your Domain Authority. If you notice that your DA score is lower than you would like it to be, take a closer look at the quality and quantity of your inbound links. You may need to remove some bad links from your link profile in order to improve your DA score.

8) Use Moz’s Domain Authority Checker

One of the best ways to keep track of your site’s DA is to use Moz’s Domain Authority Checker. This tool will not only show you your current DA score, but it will also show you how your score has changed over time. This is a valuable resource for tracking your progress and making adjustments as needed.

9) Improve your website speed

The speed of your website can also impact your DA score. If your site takes too long to load, users will likely get frustrated and leave before they even have a chance to see your content. Google also takes website speed into account when determining search engine rankings, so it’s important to make sure your site is as fast as possible. You can use tools like GTMetrix or Pingdom to analyze your site’s speed and make any necessary improvements.

10) Become an authority within your industry.

Finally, one of the best ways to improve your Domain Authority is to become a thought leader and expert within your industry. By regularly publishing valuable content, engaging with other website owners on social media, and attending relevant events and conferences, you can establish yourself as an authority figure in your field. This will help inspire trust and credibility among users, which in turn will help improve your Domain Authority.

As you can see, there are many steps that you can take to improve your site’s Domain Authority. By focusing on these tips, you should be able to increase your DA score over time and improve your website’s visibility in the search engine rankings.

Why did my Domain Authority change?

There are many different factors that can impact your site’s DA score, including changes to Google’s algorithm and fluctuations in the number of backlinks pointing to your site.

Additionally, Domain Authority is a relative score that is used to compare one website to another. As such, your site’s DA score may decrease if a competitor’s site experiences a significant increase in links or authority.

If you see a sudden drop in your site’s DA score, it’s important to check your link profile to see if there have been any sudden changes, such as a large number of low-quality or spammy external links suddenly pointing to your site.

There are also many seo tools and strategies you can use to improve your website’s DA score, including building quality backlinks from authoritative websites, staying up-to-date with Google’s algorithm changes, and regularly monitoring your link profile for any potential issues or drops in authority.

As a general rule of thumb, it’s best to focus on quality over quantity when it comes to building links and improving your site’s DA score.

What Factors Does Moz Use to Determine Their Scores?

There are more than 40 factors that contribute to a site’s DA score. The Moz team does not disclose the full list of factors, as they do not want people to game the system. However, some of the known factors that are used in the DA algorithm include:

1) Linking root domains

The number of linking root domains is one of the most important factors in determining a site’s DA score. A root domain is the highest level of a website, such as

Links from unique root domains are given more weight than links from the same domain. For example, a link from would be considered more valuable than a link from

2) Link authority and spam score

In addition to the number of linking root domains, Moz also considers the “spam score” and “link authority” of each domain that links to your site. A high-quality, authoritative website will have a lower spam score and higher link authority, which will contribute to a higher DA score for your site.

3) Search engine friendliness

Moz also looks at the overall search engine friendliness of your site, including factors like page load speed, page authority, content length or quality, and mobile friendliness. By optimizing these on-page SEO factors, you can help improve your website’s DA score.

4) MozRank

MozRank is one of the factors that Moz uses to calculate a site’s DA score. This metric measures the overall popularity and importance of your website, based on how many other websites link to it. Websites with higher MozRank scores will generally have higher Domain Authority scores.

5) MozTrust

MozTrust is another metric used in the DA calculation. This metric measures the trustworthiness of your website, based on factors like the number of links from high-quality websites and the age of your domain. The higher your MozTrust score, the more credible and trustworthy your site will appear to search engines.

6) Social media signals

While Moz does not explicitly state that social shares and activity are a factor in determining Domain Authority, it is widely believed that this may be one of the factors used. This makes sense, as many websites rely on social media to increase their traffic and engagement levels. By having strong social signals from sites like Facebook, Twitter, and Instagram, you can help improve your site’s DA score.

7) Age of domain

The age of your domain is another potential factor in the DA calculation. Older domains generally have more authority than newer domains, as they’ve had more time to build up links and MozRank.

Bottom Line

Domain Authority is an important metric to keep an eye on, especially if you’re trying to rank higher on search engine results pages. A higher DA score can help you rank more easily for competitive keywords, and it can also give you an indication of how strong your website is overall. However, there is no “magic number” or threshold that will guarantee success in your SEO efforts. A good domain authority score can be an important factor in your SEO success, but it’s only one part of the puzzle.