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How Domain Authority Is Calculated

How Domain Authority is Calculated

Domain Authority (DA) is a metric developed by Moz that predicts how well a website will rank on search engine results pages (SERPs). It is a score that ranges from 1-100, with higher scores indicating a greater likelihood of ranking higher in SERPs. DA is calculated using a proprietary algorithm that takes into account a wide range of factors, including the number and quality of inbound links a website has, the relevance and authority of those linking domains, and the overall strength of the website’s content.

Linking Root Domains

One of the key factors that DA takes into account is the number and quality of linking root domains. Essentially, a linking root domain is any website that links back to your website. The more high-quality linking root domains you have, the higher your DA is likely to be. However, it’s important to note that not all links are created equal. Links from authoritative websites with high DA scores themselves will carry more weight than links from lower-quality or less relevant websites.

MozRank, MozTrust, and Other Factors

In addition to linking root domains, DA also takes into account other factors like MozRank, MozTrust, and others. MozRank is a score that rates the popularity and importance of a webpage based on the quantity and quality of links pointing to it. MozTrust, on the other hand, measures the trustworthiness and credibility of a website or webpage, based in part on the number of linking root domains it has from trusted sources. Other factors that DA considers include the age of a website, the relevance of its content to the user’s query, and other on-page and off-page factors.

Overall, while the exact algorithm used to calculate DA is proprietary to Moz, it’s clear that the metric takes a wide range of factors into account in order to provide an accurate prediction of a website’s ability to rank well on SERPs. By focusing on building high-quality inbound links from trusted sources, producing relevant and engaging content, and optimizing your website for search engines, you can gradually improve your website’s DA score and increase your chances of ranking higher in search results.


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