Guide to Check The Domain Authority(DA) and Page Authority(PA) by MOZ

Domain Authority and Page Authority by moz

Domain Authority (DA) is a numerical score that reflects the authority and credibility of an entire domain or website. It takes into account multiple factors that contribute to a site’s trustworthiness and influence within the digital landscape. By evaluating the quality and quantity of backlinks, the relevance of the linking domains, and other crucial metrics, DA provides a holistic view of a website’s overall authority.

Factors influencing Domain Authority(DA)

  • Linking root domains: The number of unique domains linking to a website significantly impacts its DA. The more high-quality and relevant backlinks a domain has, the higher its DA is likely to be.
  • Quality and relevance of backlinks: Not all backlinks are created equal. MOZ’s algorithm analyzes the quality, relevance, and authority of the websites linking to a domain to determine its DA. Backlinks from authoritative and reputable sources carry more weight.
  • MozRank and MozTrust: MozRank evaluates the popularity of a webpage based on the quantity and quality of backlinks. MozTrust, on the other hand, measures the trustworthiness of a domain by examining the reliability and integrity of its linking sources.
  • Social signals and engagement: User engagement on social media platforms, such as likes, shares, and comments, can indirectly impact a website’s DA. Strong social signals can indicate the popularity and authority of a domain, potentially boosting its DA.

How Domain Authority(DA) is calculated

MOZ employs a sophisticated algorithm to calculate DA. While the exact formula remains undisclosed, it considers various factors such as link metrics, MozRank, MozTrust, and social signals. By analyzing these factors and assigning weightage to each, MOZ generates a numerical DA score for a website.

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Interpreting Domain Authority(DA) scores

  • DA scale and its implications: DA scores range from 0 to 100. Higher scores signify greater authority and influence. However, it’s essential to note that DA operates on a logarithmic scale. Consequently, the effort required to increase DA from 20 to 30 is substantially less than that required to raise it from 70 to 80.
  • Comparing DA scores between websites: Comparing DA scores between websites can help gauge relative authority. A website with a higher DA is generally considered more authoritative than one with a lower score. However, it’s crucial to make such comparisons within the same industry or niche, as the scale differs across different fields.

Exploring Page Authority (PA)

Page Authority (PA) focuses on evaluating the authority of individual webpages within a domain. While similar to DA in concept, PA provides insights into the potential ranking strength of specific pages rather than the overall website.

Difference between Domain Authority(DA) and Page Authority (PA)

While both DA and PA contribute to a website’s SEO performance, they differ in their scope. DA reflects the overall authority of an entire domain, while PA zooms in on individual pages. A domain may have high DA but individual pages with varying PA scores, depending on their specific optimizations and backlink profiles.

Factors influencing Page Authority (PA)

  • Internal linking structure: The organization and structure of internal links play a crucial role in determining a page’s PA. A well-designed internal linking strategy helps distribute authority and relevance across the website, positively impacting PA.
  • On-page optimization: Factors like keyword usage, meta tags, headings, and content relevance directly influence a page’s PA. Optimizing these on-page elements increases the likelihood of higher PA scores.
  • Relevance and quality of content: High-quality, informative, and relevant content attracts more backlinks and social engagement, which in turn contribute to higher PA scores. Creating valuable content tailored to the target audience can positively impact PA.
  • User experience and engagement: Factors such as page load speed, mobile-friendliness, and user engagement metrics (e.g., time on page, bounce rate) indirectly influence PA. A positive user experience often leads to increased engagement and, subsequently, higher PA.

How Page Authority (PA) is calculated

Similar to DA, MOZ’s algorithm considers various factors to calculate PA. By assessing factors like link metrics, content quality, on-page optimization, and user engagement signals, MOZ determines the PA score for a webpage.

Relationship between Page Authority (PA) and Domain Authority(DA)

While DA and PA are distinct metrics, they are interconnected. The DA of a website can influence the potential PA scores of its individual pages. High DA websites often have stronger link profiles and more overall authority, providing a foundation for pages within the domain to achieve higher PA.

Importance of high Domain Authority(DA) and Page Authority (PA)

Having high DA and PA scores can provide significant benefits to a website’s SEO efforts. Websites with higher authority are more likely to rank well in search engine result pages (SERPs), attract organic traffic, and gain visibility among target audiences.

Strategies to improve Domain Authority(DA) and Page Authority (PA)

  • Building high-quality backlinks: Focus on acquiring backlinks from authoritative and relevant websites. Engage in outreach campaigns, guest posting, and content partnerships to secure high-quality backlinks. Quality over quantity is crucial in building a strong backlink profile.
  • Optimizing on-page elements: Pay attention to on-page optimization factors such as meta tags, headings, keyword usage, and content relevance. Optimize each page to align with specific target keywords and provide valuable information to users.
  • Enhancing user experience: Invest in improving user experience on your website. Ensure fast loading times, mobile responsiveness, intuitive navigation, and engaging design. A positive user experience not only enhances PA but also encourages visitors to stay longer on your site and explore more pages.
  • Creating valuable and engaging content: Develop a content strategy that focuses on creating high-quality, informative, and engaging content. Publish articles, blog posts, videos, infographics, or any other content format that resonates with your target audience. Valuable content naturally attracts backlinks and boosts both DA and PA.

Limitations and Criticisms of Domain Authority(DA) and Page Authority (PA)

While DA and PA provide valuable insights, it’s important to acknowledge their limitations:

  • Subjectivity and potential biases: DA and PA are proprietary metrics developed by MOZ. While they aim to objectively evaluate authority and relevance, there may be inherent subjectivity and potential biases in the algorithm.
  • Overemphasis on quantity over quality: Although backlinks are an important factor in calculating DA and PA, focusing solely on acquiring a large number of backlinks without considering their quality and relevance may lead to inflated scores that don’t necessarily reflect true authority.
  • Updates and changes to the MOZ algorithm: MOZ periodically updates its algorithm, which can impact how DA and PA are calculated. It’s crucial to stay informed about these updates and adapt your strategies accordingly to maintain and improve your scores.


Domain Authority (DA) and Page Authority (PA) by MOZ are essential metrics for understanding a website’s authority, credibility, and potential for search engine rankings. By comprehending the factors influencing DA and PA, leveraging strategies to improve them, and continuously monitoring and adapting to changes, you can enhance your website’s SEO performance and establish a strong online presence. Remember, while DA and PA are valuable tools, they should be considered alongside other SEO factors and used as part of a comprehensive strategy to achieve optimal results.

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