What is Domain Authority? How Does It Affect SEO?

What is Domain Authority? How Does It Affect SEO?

04/06/2025 01:08 PM 56 Views
Table of Contents

    What is Domain Authority? How Does It Affect SEO? Let's find out with MIMADIGI.

    In the world of SEO, there are many metrics and tools used to measure the effectiveness and power of a website. One of the most popular metrics is Domain Authority (DA). This is a measure developed by Moz to predict the ranking potential of a website on search engines. So what is Domain Authority, how is this metric calculated, and how does it affect SEO?

    Let's delve deeper into this article so you can make the most of DA in your website development strategy and increase search rankings.

    What is Domain Authority? How Does It Affect SEO? with MIMADIGI

    What is Domain Authority?

    • Domain Authority is a metric developed by Moz, which helps to assess the credibility and competitiveness of a domain in search results. The DA score ranges from 1 to 100 - the higher it is, the more powerful the domain is considered in terms of SEO.
    • Moz is not Google. This means that Domain Authority is not an official factor that Google uses to rank websites. However, it is seen as a reliable indicator of the strength of a website in the eyes of search engines.

    Who created Domain Authority?

    • Domain Authority is a product of Moz, one of the leading companies in SEO, specializing in providing keyword analysis, backlink, and website performance tools.
    • Moz developed Domain Authority to help SEOers, marketers, and business owners estimate the SEO potential of a domain and build a more appropriate strategy.

    What is Domain Authority? How Does It Affect SEO? with MIMADIGI

    How does Domain Authority work?

    The DA score is calculated based on many different factors. However, Moz does not publish the full details of the DA calculation algorithm to avoid manipulation of this metric. Here are the strongest influencing factors:

    • Quality and quantity of backlinks: The more reputable websites link to you, the higher your DA will be.
    • Quality of internal linking: A good internal linking structure also helps to stabilize DA.
    • Diversity of referring domains: Many different domains linking to you are better than many backlinks from the same domain.
    • MozRank & MozTrust: Are Moz's sub-metrics for assessing link quality.
    • Website structure and crawlability: Websites that are easier to crawl are preferred.

    Moz uses machine learning technology to compare your website data with millions of other websites to come up with the final DA number.

    How is Domain Authority different from Page Authority?

    • Domain Authority measures the entire domain (including all subpages).
    • Page Authority (PA) measures a specific page on the domain.
    • For example, if your domain is yourwebsite.com, then:
    • DA measures the overall strength of yourwebsite.com
    • PA measures the individual strength of yourwebsite.com/blog/post1

    Both metrics are important, however, DA is usually more concerned in the overall SEO strategy.

    What is Domain Authority? How Does It Affect SEO? with MIMADIGI

    Does Domain Authority Affect SEO?

    Although Google does not use DA in its official algorithm, DA indirectly affects SEO greatly. Some reasons are as follows:

    Quality Signals
    A high DA usually comes with:

    • Quality backlink system
    • Good, valuable content
    • Logical and easy-to-crawl website structure

    All of these are factors that Google highly values to rank websites.

    Measuring SEO Potential

    • DA helps you know the relative position of your website compared to the competition. From that:
    • Assess the difficulty when you want to surpass the competition on SERPs.
    • Determine an effective link building strategy.

    Suggest a link building strategy

    For example: If you have a website DA 15 and the competition is DA 60, then competing on the same keyword is very difficult. At this time, you can choose an easier keyword or focus on building quality backlinks to improve DA.

    Domain Authority Levels and How to Understand Them

    DA Score

    Evaluation Level

    1 – 10

    New domain, no signals

    11 – 30

    Average, needs improvement

    31 – 50

    Fair, has a good foundation

    51 – 70

    Strong reputation, effective SEO

    71 – 100

    Very strong, top of the field

    Note that the DA score is relative. The fact that a domain has a DA of 45 does not mean that it ranks higher than a domain with a DA of 40 on Google - it also depends on content quality, user experience, and many other factors.

    What is Domain Authority? How Does It Affect SEO? with MIMADIGI

    How to check Domain Authority

    You can use the following tools to check the DA score:

    • Moz Link Explorer (https://moz.com/link-explorer)
    • MozBar (Chrome extension that displays DA/PA directly on the browser)
    • Ahrefs, SEMrush, Ubersuggest: Although not showing DA, they provide equivalent metrics such as Domain Rating (DR) or Authority Score.

    Regularly tracking DA will help you know how your website is developing and what needs to be improved.

    How to Increase Domain Authority Effectively

    Create quality content
    Content is the core factor that helps attract natural backlinks. The more valuable the content, the more people are willing to share or link back to it.

    Focus on writing:

    • In-depth guides
    • Long articles, optimized for SEO
    • Own research and statistical content

    Build quality links

    Backlinks from reputable websites have a strong impact on DA. You can build links by:

    • Guest post on large blogs
    • Post PR articles with backlinks
    • Exchange backlinks in the same industry
    • Create viral content to be cited

    Increase the diversity of referring domains

    • Not only the quantity, but also the diversity of referring domains is important. Instead of having 100 links from 1 website, try to have 10 links from 10 different websites.

    Improve SEO techniques

    A website with a good structure, fast loading speed, mobile-friendly and easy to crawl by Google bots will be rated higher.

    You should:

    • Check sitemap.xml and robots.txt files
    • Optimize page speed by compressing images, using cache
    • Make sure there are no 404 errors or redirect errors

    Remove toxic backlinks

    • Not all backlinks are good. Some links from spam pages can pull DA down. You should regularly audit your backlink profile and remove malicious links using Google's Disavow tool.

    Common Myths About Domain Authority

    • DA is not an official factor of Google: Many people mistakenly believe that DA is a "Google standard", while this is just a metric developed by Moz.
    • High DA does not guarantee high rankings: A website with DA 70 can still be downgraded if the content is poor and not suitable for users.
    • DA does not increase quickly: DA is an aggregate metric, increasing this metric takes time, especially at levels from 40 and above.

    What is Domain Authority? How Does It Affect SEO? with MIMADIGI

    When should you care about DA?

    • When you want to compare your website with competitors in the same field.
    • When you need to assess the quality of a website for acquisition or cooperation.
    • When building a backlink strategy and want to check the current domain strength.
    • When you want to improve long-term SEO competitiveness.

    Is DA more important than content?

    The answer is no. Domain Authority is a support tool, but content is still king in SEO. You can have a low DA but still rank high if:

    • Optimize the right keywords
    • Provide useful and new information
    • Meet the search intent of users

    Think of DA as a potential measurement tool, not a “magic key” that decides everything.

    Need support registering a domain and designing a website?

    Contact MIMADIGI now for advice and implementation of comprehensive solutions:

    📞 Hotline: 0909.035.333
    🌐 Website: https://mimadigi.com/
    📧 Email: info@mimadigi.com

     


    Huynh Ngoc Thao Tien

    Content Specialist

    Is a skilled content marketing professional with extensive experience in website design, SEO, fanpage management, and Google Maps optimization. Her strength lies in crafting engaging content strategies that help businesses increase online visibility and build strong digital brands.

    Review blog
    Average Rating
    0/5
    5
    0%
    4
    0%
    3
    0%
    2
    0%
    1
    0%

    Share your review

    Submit your review
    What is Domain Authority? How Does It Affect SEO?
    What is Domain Authority? How Does It Affect SEO?
    Domain Authority is an extremely useful metric in SEO - helping you assess the strength of a domain, identify link building strategies, and optimize content accordingly. Although not an official ranking factor from Google, DA is still a reliable measure for shaping long-term SEO plans.

    Other blogs